- Adams, L.W.; Geis, A.D., 1981, Effects of highways on wildlife: U.S. Department of Transportation, Federal Highway Administration. Report FHWA/RD-81/067, 142,
- Anderson, Stanley H.; Robbins, Charles S.; Partelow, Janet R., 1981, Habitat management for birds of Pennsylvania: U.S. Fish and Wildlife Service FWS/OBS 81/39.1, viii, 45 leaves; ill.; 28 cm.,
- Anderson, Stanley H.; Robbins, Charles S.; Partelow, Janet R., 1981, Habitat management for birds of West Virginia: U.S. Fish and Wildlife Service FWS/OBS 81/39.2, viii, 39 leaves : ill., maps; 28 cm.,
- Anderson, Stanley H.; Robbins, Charles S.; Partelow, Janet R., 1981, Habitat management for birds of Alabama: U.S. Fish and Wildlife Service FWS/OBS 81/39.3, viii, 51 leaves : ill.; 28 cm.,
- Bahr, Leonard M.; Lanier, William P., 1981, The Ecology of Intertidal Oyster Reefs of the South Atlantic Coast: A Community Profile: U.S. Fish and Wildlife Service FWS/OBS 81/15, x, 105 p.,
- Bailey, Robert G.; Cushwa, Charles T., 1981, Ecoregions of North America: U.S. Fish and Wildlife Service FWS/OBS 81/29, 1 map : col.; 74 x 56 cm.,
- Banks, R.C., 1981, Summary of foreign gamebird liberations 1969-1978: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 239, 23,
- Banks, Richard C., 1981, Summary of foreign game bird liberations, 1969-78: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 239, 23 p. ; 26 cm.,
- Barr Engineering Co.; Bather-Ringrose-Wolsfeld-Jarvis-Gardner, Inc.; Borovsky, John P., 1981, Enhancement of fish and wildlife resources in the reclamation of hard rock mined lands in the upper Midwest: a guidelines manual: U.S. Fish and Wildlife Service FWS/OBS 80/64, ix, 123 p. : ill., maps; 28 cm.,
- Beccasio, Angelo D., 1981, Pacific coast ecological inventory: user‘s guide and information base: U.S. Fish and Wildlife Service FWS/OBS 81/30, 159 p. : maps (some col.); 28 cm.,
- Berlin, William H.; Hesselberg, Robert J.; Mac, Michael J., 1981, Growth and mortality of fry of Lake Michigan lake trout during chronic exposure to PCB‘s and DDE: U.S. Fish and Wildlife Service Technical Paper 105, p. 11-22,
- Best, L. B.; Stauffer, D. F.; Geier, A. R.; Varland, K. L.; Vogler, J. P.; Dahlgren, R. B.; Landers, R. Q., 1981, Effects of habitat alterations on riparian plant and animal communities in Iowa: U.S. Fish and Wildlife Service FWS/OBS 81/26, 55 p.,
- Brinson, Mark M., 1981, Riparian ecosystems: their ecology and status: U.S. Fish and Wildlife Service FWS/OBS 81/17, xvi, 155 p. : ill.,; maps; 27 cm.,
- Bullock, G. L., 1981, Streptococcal infections of fishes: U.S. Fish and Wildlife Service Fish Disease Leaflet 63, 7 p.,
- Bullock, Graham L., 1981, Streptococcal infections of fishes: U.S. Fish and Wildlife Service Fish Disease Leaflet 63, 7 p. ; 28 cm.,
- Camp, Dresser McKee, Inc., 1981, Effects of peat mining on fish and other aquatic organisms in the upper Midwest: U.S. Fish and Wildlife Service FWS/OBS 80/65, v, 72 p.,
- Campbell, Dan L.; Johnson, Larry E., 1981, Guide for collecting and seeding native forbs for wildlife in Douglas-fir clearcuts: U.S. Fish and Wildlife Service Wildlife Leaflet 513, 13 p. : ill. ; 27 cm.,
- Carey, Robert C.; Markovits, Paul S.; Kirkwood, James B., 1981, Proceedings, U.S. Fish and Wildlife Service Workshop on Coastal Ecosystems of the Southeastern United States : a compilation of seminars, discussions, papers and biological summaries presented at Big Pine Key, Florida 18-22 February.1980: U.S. Fish and Wildlife Service FWS/OBS 80/59, vii, 257 p. : ill., maps; 28 cm.,
- Clark, D.R., Jr., 1981, Bats and environmental contaminants: A review: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 235, 27,
- Clark, Donlad R., Jr., 1981, Bats and environmental contaminants: a review: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 235, 27 p. ; 26 cm.,
- compiled by Craven, Scott R., 1981, The Canada goose (Branta canadensis): an annotated bibliography: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 231, 66 p. ; 26 cm.,
- compiled by Novara, Albert N.; Rhoades, Sharon L.; Hodges, Betty I.; Norman, K. Duane, 1981, Waterfowl status report, 1978.: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 237, 96 p.,
- compiled by Smith, Carey S.; Rhoades, Sharon L.; Norman, K. Duane, 1981, Waterfowl status report, 1977.: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 236, 88 p.,
- Cushwa, C. T., 1981, A summary of fish and wildlife information needs to surface mine coal in the United States. Part 2, the status of State surface mining regulations as of January 1980 and the fish and wildlife information needs: U.S. Fish and Wildlife Service FWS/OBS 79/48.2, 61 p.,
- Dickson, Kenneth L.; Vance, Dwain, 1981, Revegetating surface mined lands for wildlife in Texas and Oklahoma: U.S. Fish and Wildlife Service FWS/OBS 81/25, x, 120 p. : ill., maps; 28 cm.,
- Douglas, C. L.; Kingsley, K. J., 1981, Bighorn habitat evaluation and management guidelines for the Grapevine Mountains, Death Valley National Monument: National Park Service Technical Report CPSU/UNLV 023/01, 39 p.,
- Duebbert, H. F.; Jacobson, E. T.; Higgins, K. F.; Podoll, E. B., 1981, Establishment of seeded grasslands for wildlife habitat in the prairie pothole region: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 234, 21 pp.,
- Duebbert, Harold F.; Jacobson, Erling T.; Higgins, Kenneth E.; Podoll, Erling B., 1981, Establishment of seeded grasslands for wildlife habitat in the prairie pothole region: U.S. Fish and Wildlife Service Special Scientific Report -- Wildlife 234, [2], 21 p. : ill. ; 27 cm.,
- edited by Cross, R. D.; Williams, D. L., 1981, Proceedings of national symposium on freshwater inflow to estuaries: U.S. Fish and Wildlife Service FWS/OBS 81/04, 2 volumes,
- edited by Herdendorf, Charles E.; Hartley, Suzanne M.; Barnes, Mark D., 1981, Fish and wildlife resources of the Great Lakes coastal wetlands within the United States: U.S. Fish and Wildlife Service FWS/OBS 81/02, v. : ill., maps; 28 cm.,
- edited by Jones and Stokes Associates Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. 4, part 2 (chapter 17-29): watersheds and basins: U.S. Fish and Wildlife Service FWS/OBS 80/48.2, 705 p.,
- Evans, James; Campbell, Dan L.; Lindsey, Gerald D.; Barnes, Victor G., Jr.; Anthony, R. Michael, 1981, Distribution of animal damage in southwestern Oregon forests: U.S. Fish and Wildlife Service Wildlife Leaflet 514, 12 p. : ill., 1 map ; 27 cm.,
- Faanes, C. A., 1981, Birds of the St. Croix River Valley: Minnesota and Wisconsin: U.S. Fish and Wildlife Service North American Fauna 73, 196 pp.,
- Faanes, Craig A., 1981, Birds of the St. Croix River valley: Minnesota and Wisconsin: U.S. Fish and Wildlife Service North American Fauna 73, 196 p.,
- Fay, Francis H., 1981, Ecology and biology of the Pacific Walrus, Odobenus rosmarus divergens illiger: U.S. Fish and Wildlife Service North American Fauna 74, vi, 279 p. : ill., maps ; 23 cm.,
- Fellers, Gary M, 1981, Historical evaluation and management recommendations for beavers at Lassen Volcanic National Park: University of California-Davis, Institute of Ecology Technical Report CPSU/UCD 3, iv, 27 p.,
- Fellers, Joan H; Fellers, Gary, M., 1981, The status and distribution of ants in the Crater District of Haleakala National Park: University of Hawaii, Department of Botany Technical Report CPSU/UH 40, iv, 14 p.,
- Forsell, Douglas J.; Gould, Patrick J., 1981, Distribution and abundance of marine birds and mammals in the Kodiak area of Alaska: U.S. Fish and Wildlife Service FWS/OBS 81/13, x, 72 p. : ill., maps; 28 cm.,
- Fowler, Dale K.; Turner, Linda J., 1981, Surface mine reclamation for wildlife: a model reclamation plan for southern Appalachia: U.S. Fish and Wildlife Service FWS/OBS 81/09, viii, 30 p.,
- Fritts, T.H.;McGehee, M.A., 1981, Effects of petroleum on the development and survival of marine turtle embryos: U.S. Fish and Wildlife Service FWS/OBS 81/37, 41,
- Fritts, T.H.;Reynolds, R.P., 1981, Pilot study of the marine mammals, birds and turtles in OCS areas of the Gulf of Mexico: U.S. Fish and Wildlife Service FWS/OBS 81/36, 139,
- Fritts, Thomas H.; Reynolds, Robert P., 1981, Pilot study of the marine mammals, birds, and turtles in OCS areas of the Gulf of Mexico: U.S. Fish and Wildlife Service FWS/OBS 81/36, xi, 139 p. : ill.; 28 cm.,
- Gallaway, Benny J., 1981, An ecosystem analysis of oil and gas development on the Texas-Louisiana Continental Shelf: U.S. Fish and Wildlife Service FWS/OBS 81/27, viii, 89 p. : ill., maps; 28 cm.,
- Gilbert, Terry; King, Tim; Barnett, Brian, 1981, An assessment of wetland habitat establishment at a central Florida phosphate mine site: U.S. Fish and Wildlife Service FWS/OBS 81/38, xiv, 96 p. : ill., maps; 28 cm.,
- Gilderhus, P. A.; Burress, R. M.; Walker, C. R., 1981, Simulated field testing methods for pest control agents in lotic and lentic ecosystems: American Society for Testing Materials Special Technical Report 752, 161-166,
- Gilmer, D. S.; Cowardin, L. M.; Duval, R. L.; Mechlin, L., 1981, Procedures for the use of aircraft in wildlife biotelemetry studies: U.S. Fish and Wildlife Service Resource Publication 140, 19 pp.,
- Gilmer, D. S.; Cowardin, L. M.; Duval, R. L.; Mechlin, L. M.; Shaiffer, C. W.; Kuechle, V. B., 1981, Procedures for the use of aircraft in wildlife biotelemetry studies: U.S. Fish and Wildlife Service Resource Publication 140, 19 p.,
- Gilmer, David S.; Cowardin, Lewis M.; Duval, Renee L.; Mechlin, Larry M.; Shaiffer, Charles W.; Kuechle, V. B., 1981, Procedures for the use of aircraft in wildlife biotelemetry studies: U.S. Fish and Wildlife Service Resource Publication 140, 19 p. : ill. ; 26 cm.,
- Gordon, Sharon L.; Lundblad, Herbert L.; Westcott, Carol A., 1981, National Coastal Ecological Research: existing and proposed energy developments: U.S. Fish and Wildlife Service FWS/OBS 81/11, xi, 158, 20 p. : ill., maps; 29 cm.,
- Great Lakes Fishery Laboratory, 1981, Chlorinated hydrocarbons as a factor in the reproduction and survival of lake trout (Saluelinus namaycush) in Lake Michigan: U.S. Fish and Wildlife Service Technical Paper 105, 42 p. : ill. ; 26 cm.,
- Grenney, William J.; Krazewski, Andrezej K., 1981, Description and application of the stream simulation and assessment version IV (SSAM IV): U.S. Fish and Wildlife Service FWS/OBS 81/46, ix, 199 p. : ill.; 28 cm.,
- Handel, Colleen M., 1981, An annotated bibliography of literature on Alaska water birds: U.S. Fish and Wildlife Service FWS/OBS 81/12, iv, 515 p. : 1 map; 28 cm.,
- Hanley, Peter T., 1981, Natural resource protection and petroleum development in Alaska: U.S. Fish and Wildlife Service FWS/OBS 80/22, 2 v. : ill., maps; 28 cm.,
- Hanley, Peter T., 1981, Natural resource protection and petroleum development in Alaska: a summary: U.S. Fish and Wildlife Service FWS/OBS 80/22.1, 2 v. : ill., maps; 28 cm.,
- Hays, Robert L.; Summers, Cliff; Seitz, William, 1981, Estimating wildlife habitat variables: U.S. Fish and Wildlife Service FWS/OBS 81/47, viii, 111 p.; 28 cm.,
- Hedgpeth, Joel Walker; Obrebski, Steven, 1981, Willapa Bay: a historical perspective and a rationale for research: U.S. Fish and Wildlife Service FWS/OBS 81/03, viii, 52 p. : ill., maps; 28 cm.,
- Henley, Don E.; Rauschuber, Donald G., 1981, Freshwater needs of fish and wildlife resources in the Nueces-Corpus Christi Bay Area, Texas: a literature synthesis: U.S. Fish and Wildlife Service FWS/OBS 80/10, xxiv, 410 p. : ill., maps; 28 cm.,
- Herman, R. L., 1981, Visceral granuloma and nephrocalcinosis: U.S. Fish and Wildlife Service Fish Disease Leaflet 64, 3 p.,
- Herman, Roger L., 1981, Visceral granuloma and nephrocalcinosis: U.S. Fish and Wildlife Service Fish Disease Leaflet 64, 3 p.,
- Herricks, Edwin E., 1981, Best current practices for fish and wildlife on surface-mined lands in the eastern interior coal region: U.S. Fish and Wildlife Service FWS/OBS 80/68, xii, 212 p. : ill., 2 maps; 28 cm.,
- Hill, C., 1981, Feasibility of using geothermal effluents for waterfowl wetlands: U.S. Fish and Wildlife Service FWS/OBS 81/44, xii, 220 p. : ill., maps; 28 cm.,
- Hinkle, Charles R.; Ambrose, Richard E.; Wenzel, Calvin R., 1981, A handbook for meeting fish and wildlife information needs to surface mine coal-OSM Region I: U.S. Fish and Wildlife Service FWS/OBS 79/48.3.1, 1 v. (various pagings) : ill., maps; 30 cm.,
- Hinkle, Charles R.; Ambrose, Richard E.; Wenzel, Calvin R., 1981, A handbook for meeting fish and wildlife information needs to surface mine coal-OSM Region II: U.S. Fish and Wildlife Service FWS/OBS 79/48.3.2, 1 v. (various pagings) : ill., maps; 29 cm.,
- Hinkle, Charles R.; Ambrose, Richard E.; Wenzel, Calvin R., 1981, A handbook for meeting fish and wildlife information needs to surface mine coal-OSM Region III: U.S. Fish and Wildlife Service FWS/OBS 79/48.3.3, 1 v. (various pagings) : ill., maps; 29 cm.,
- Hinkle, Charles R.; Ambrose, Richard E.; Wenzel, Calvin R., 1981, A handbook for meeting fish and wildlife information needs to surface mine coal-OSM Region IV: U.S. Fish and Wildlife Service FWS/OBS 79/48.3.4, 395 p. in various pagings : ill.; 30 cm.,
- Hinkle, Charles R.; Ambrose, Richard E.; Wenzel, Calvin R., 1981, A handbook for meeting fish and wildlife information needs to surface mine coal-OSM Region V: U.S. Fish and Wildlife Service FWS/OBS 79/48.3.5, 1 v. (loose-leaf) : ill.; 29 cm.,
- Honig, Robert A.; Olson, Richard J.; Mason, William T., Jr., 1981, Atlas of coal/minerals and important resource problem areas for fish and wildlife in the conterminous United States: U.S. Fish and Wildlife Service FWS/OBS 81/06, xi, 107 p. : maps.,
- Irvine, A. Blair; Caffin, John E.; Kochman, Howard I., 1981, Aerial surveys for manatees and dolphins in western peninsular Florida (with notes on sightings of sea turtles and crocodiles): U.S. Fish and Wildlife Service FWS/OBS 80/50, vi, 21 p. : ill., maps; 28 cm.,
- Johnson, D. H., 1981, The use of multivariate statistics in studies of wildlife habitat: U.S. Forest Service General Technical Report RM-87, p. 11-19,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. I, basic ecological concepts. 209 pp: U.S. Fish and Wildlife Service FWS/OBS 80/45, 5 v. in 8 : ill.; 28 cm.,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. II, Part 1, regional characterization: U.S. Fish and Wildlife Service FWS/OBS 80/46.1, 5 v. in 8 : ill.; 28 cm.,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. II, Part 2, species: U.S. Fish and Wildlife Service FWS/OBS 80/46.2, 5 v. in 8 : ill.; 28 cm.,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. III, Part 1, habitats: U.S. Fish and Wildlife Service FWS/OBS 80/47.1, 5 v. in 8 : ill.; 28 cm.,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. III, Part 2, community: U.S. Fish and Wildlife Service FWS/OBS 80/47.2, 5 v. in 8 : ill.; 28 cm.,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. IV, part 1 (chapters 1-16): watersheds and basins: U.S. Fish and Wildlife Service FWS/OBS 80/48.1, 690 p.: ill.; 28 cm.,
- Jones and Stokes Associates, Inc., 1981, An ecological characterization of the central and northern California coastal region. Vol. V, data source appendix: U.S. Fish and Wildlife Service FWS/OBS 80/49, 5 v. in 8 : ill.; 28 cm.,
- Keeley, J. E., 1981, Reproductive cycles and fire regimes: U.S. Forest Service General Technical Report WO-26, p. 231-277,
- Larson, Douglas K., 1981, Mississippi Deltaic plain ecological characterization: a socioeconomic study. Vol. II, map narratives: U.S. Fish and Wildlife Service FWS/OBS 79/06, [1] v. : ill.; 28 cm.,
- Leedy, Daniel L., 1981, Coal surface mining reclamation and fish and wildlife relationships in the eastern United States. Vol. I, past findings, the surface Mining Law of 1977 (P.L. 95-87), future planning and management considerations, and information sources: U.S. Fish and Wildlife Service FWS/OBS 80/24, 2 v. : ill.; 27 cm.,
- Leedy, Daniel L.; Franklin, Thomas M., 1981, Coal surface mining reclamation and fish and wildlife relationships in the eastern United States. Vol. II, opportunities and approaches for fish and wildlife planning and management in coal surface mining, reclamation and postmining land use: U.S. Fish and Wildlife Service FWS/OBS 80/25, 2 v. : ill.; 27 cm.,
- Leedy, Daniel L.; Franklin, Thomas M.; Maestro, Robert M., 1981, Planning for urban fishing and waterfront recreation: U.S. Fish and Wildlife Service FWS/OBS 80/35, viii, 108 p. : ill.; 28 cm.,
- Liston, Charles R.; Duffy, Walter G.; Ashton, Diane E.; Batterson, Ted; McNabb, Clarence D., 1981, Supplementary environmental baseline studies and evaluation of the St. Mary‘s River during 1980: U.S. Fish and Wildlife Service FWS/OBS 80/62.1, xxix, 167 p.,
- Longley, William L.; Jackson, Rodney; Snyder, Bruce, 1981, Managing oil and gas activities in coastal environments: refuge manual: U.S. Fish and Wildlife Service FWS/OBS 81/22, xiv, 451 p. : ill.; 28 cm.,
- Lotan, J. E.; Alexander, M. E.; Arno, S. F.; French, R. E.; Langdon, O. G.; Loomis, R. M.; Norum, R. E.; Rothermel, R. C.; Schmidt, W. C.; van Wagtendonk, J. W., 1981, Effects of fire on flora: a state of knowledge review: U.S. Forest Service General Technical Report WO-16, 71 p.,
- Mac, M. J.; Berlin, W. H.; Rottiers, D. V., 1981, Comparative hatchability of lake trout eggs differing in contaminant burden and incubation conditions: U.S. Fish and Wildlife Service Technical Paper 105, p. 8-10,
- Mac, Michael J.; Bergstedt, Roger A., 1981, Temperature selection by young lake trout after chronic exposure to PCB‘s and DDE: U.S. Fish and Wildlife Service Technical Paper 105, p. 33-35,
- McCoy, Earl D., 1981, Rare, threatened, and endangered plant species of southwest Florida and potential OCS activity impacts: U.S. Fish and Wildlife Service FWS/OBS 81/50, x, 83 p. : ill., maps; 28 cm.,
- Nicholls, T.H.;Ostry, M.E.;Fuller, M.R., 1981, Marking ground targets with radio transmitters dropped from aircraft: U.S. Forest Service Research Note NC-274, 4,
- Office of Biological Services, 1981, Playa Lakes symposium proceedings: U.S. Fish and Wildlife Service FWS/OBS 81/07, vi, 137 p. : ill.; 28 cm.,
- Olson, James E.; Whippo, Elizabeth A.; Horak, Gerald C., 1981, Reach File Phase II Report: a standardized method for classifying status and type of fisheries: U.S. Fish and Wildlife Service FWS/OBS 81/31, vi, 56 p. : 1 map; 28 cm.,
- Portnoy, J.W.;Erwin, R.M.;Custer, T.W., 1981, Atlas of Gull and Tern Colonies: North Carolina to Key West, Florida (including Pelicans, Cormorants, and Skimmers): FWS/OBS 80/05, vi, 121,
- Portnoy, John W.; Erwin, R. Michael; Custer, Thomas W., 1981, Atlas of gull and tern colonies: North Carolina to Key West, Florida: U.S. Fish and Wildlife Service FWS/OBS 80/05, 1 atlas (vi, 121 p.) : 14 maps; 28 cm.,
- Rottiers, Donald V.; Bergstedt, Roger A., 1981, Swimming performance of young lake trout after chronic exposure to PCBs and DDE: U.S. Fish and Wildlife Service Technical Paper 105, p. 23-28,
- Sanders, Herman O.; Walsh, David F.; Campbell, Robert S., 1981, Abate: effects of the organophosphate insecticide on bluegills and invertebrates in ponds: U.S. Fish and Wildlife Service Technical Paper 104, 6 p. : ill. ; 26 cm.,
- Saunders, G.B.;Saunders, D.C., 1981, Waterfowl and their wintering grounds in Mexico, 1937-64: U.S. Fish and Wildlife Service Resource Publication 138, vi, 151,
- Schmidly, David J., 1981, Marine mammals of the southeastern United States coast and the Gulf of Mexico: U.S. Fish and Wildlife Service FWS/OBS 80/41, viii, 165 p. : ill., maps; 28 cm.,
- Shew, D.M.;Baumann, R.H.;Fritts, T.H.;Dunn, L.S., 1981, Texas barrier island region ecological characterization: environmental synthesis papers: U.S. Fish and Wildlife Service FWS/OBS 81/32, 413,
- Shew, Dale M., 1981, Texas Barrier Islands region ecological characterizations: environmental synthesis papers: U.S. Fish and Wildlife Service FWS/OBS 81/32, vi, 413 p. : ill., 7 maps; 28 cm.,
- Simons, D. B., 1981, Proceedings, Workshop on Downstream River Channel Changes Resulting from Diversions or Reservoir Construction : a compilation of papers, summaries, and problem sets presented at Fort Collins, Colorado, 27-29 August 1980: U.S. Fish and Wildlife Service FWS/OBS 81/48, v, 347 p.; ill. : 27 cm.,
- Snieszko, S. F., 1981, Bacterial gill disease of freshwater fishes: U.S. Fish and Wildlife Service Fish Disease Leaflet 62, 28 p.,
- Snieszko, Stanislas F., 1981, Bacterial gill disease of freshwater fishes: U.S. Fish and Wildlife Service Fish Disease Leaflet 62, 11 p.; 27 cm.,
- Soholt, Lars F.; Wiedenbaum, Sandi, 1981, Oil shale: its development and potential for air quality effects: U.S. Fish and Wildlife Service FWS/OBS 81/34, ix, 62 p. : ill., maps ; 28 cm.,
- Soholt, Lars F.; edited by Wyman, Dimis J., 1981, Coal combustion waste manual: evaluating impacts to fish and wildlife: U.S. Fish and Wildlife Service FWS/OBS 81/05, xii, 151 p. : ill., maps; 28 cm.,
- Turner, Linda J.; Fowler, Dale K., 1981, Utilization of surface mine ponds in east Tennessee by breeding amphibians: U.S. Fish and Wildlife Service FWS/OBS 81/08, v, 14 p. : ill., 1 map; 28 cm.,
- U.S. Interagency Advisory Committee on Water Data. Subcommittee on Sedimentation, 1981, Notes on sedimentation activities calendar year 1980: U.S. Geological Survey, Office of Water Data Coordination , viii, 284 p.,
- van Beek, Johannes L., 1981, An introduction to the environmental literature of the Mississippi Deltaic Plain Region: U.S. Fish and Wildlife Service FWS/OBS 79/30, x, 198 p. : ill., maps; 28 cm.,
- Vogele, Louis E., 1981, Reproduction of smallmouth bass, Micropterus dolomieui, in Bull Shoals Lake, Arkansas: U.S. Fish and Wildlife Service Technical Paper 106, 15 p. : ill. ; 26 cm.,
- Willford, W. A.; Bergstedt, R. A.; Berlin, W. H.; Foster, N. R.; Hesselberg, R. J.; Mac, M. J.; Passino, D. R. M.; Reinert, R. E.; Rottiers, D. V., 1981, Introduction and summary: U.S. Fish and Wildlife Service Technical Paper 105, p. 1-7,
