- Arihood, Leslie D.; Glatfelter, Dale R., 1991, Method for estimating low-flow characteristics of ungaged streams in Indiana: U.S. G.P.O. ;
For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Water Supply Paper 2372, iv, 18 p. :ill., maps ;28 cm.; 1 plate in pocket,
- Dubrovsky, Neil M.; Neil, John M.; Welker, Mary C.; Evenson, Kristin D., 1991, Geochemical relations and distribution of selected trace elements in ground water of the northern part of the western San Joaquin Valley, California: U.S. G.P.O. ;
Books and Open-File Reports Section, U.S. Geological Survey [distributor], Water Supply Paper 2380, vii, 51 p. :ill. (some col.) ;28 cm.,
- Goodwin, Carl R., 1991, Tidal-flow, circulation, and flushing changes caused by dredge and fill in Hillsborough Bay, Florida: U.S. G.P.O., Water Supply Paper 2376, vi, 49 p. :ill. ;28 cm.,
- Hamilton, P. A.; Shedlock, Robert J.; Phillips, P. J., 1991, Analysis of available ground-water-quality data through 1987 for the Delmarva Peninsula; Delaware, Maryland, and Virginia: U.S. Dept. of the Interior, U.S. Geological Survey ;
For sale by the Books and Open-File Reports Section, Water Supply Paper 2355-B, viii, 65 p. :ill, maps ;28 cm.,
- Hayes, Donald C., 1991, Low-flow characteristics of streams in Virginia: U.S. G.P.O., Water Supply Paper 2374, v, 69 p. :ill., maps ;28 cm.; 2 plates in pocket,
- Hollett, Kenneth J.; Danskin, Wesley R.; McCaffrey, William F.; Walti, Caryl L., 1991, Geology and water resources of Owens Valley, California: U.S. G.P.O. ;For sale by the Books and Open-File Reports Section, Water Supply Paper 2370-B, 77 p. 2 plates n pocket. Supercedes Open-file report 88-715.,
- Paulachok, Gary N., 1991, Geohydrology and ground-water resources of Philadelphia, Pennsylvania: U.S. G.P.O. ;
For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Water Supply Paper 2346, vii, 79 p. :ill., maps (some col.) ;28 cm.,
- Paulson, R. W.; Chase, E. B.; Roberts, R. S.; Moody, D. W., 1991, National water summary 1988-89: hydrologic events and floods and droughts: U.S. G.P.O. ;
Books and Open-File Reports Section [distributor], Water Supply Paper 2375, x, 591 p. :ill. (some col.), maps (some col.) ;28 cm.,
- Ryan, Barbara J., 1991, Results of hydrologic research at a low-level radioactive-waste disposal site near Sheffield, Illinois: U.S. G.P.O. ;
For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Water Supply Paper 2367, viii, 73 p. :ill., maps ;28 cm.,
- Sorenson, Stephen K.; Dileanis, Peter D.; Branson, Farrel A., 1991, Soil water and vegetation responses to precipitation and changes in depth to ground water in Owens Valley, California: U.S. G.P.O. ;For sale by the Books and Open-File Reports Section, Water Supply Paper 2370-G, 54 p. Supercedes Open-file report 89-260,
- Stone, Roy B.; Bingham, Roy H., 1991, Floods of December 1982 to May 1983 in the central and southern Mississippi River and the Gulf of Mexico basins: U.S. G.P.O., Water Supply Paper 2362, vi, 96 p. :ill. ;28 cm.; 1 plate in pocket,