-
1981
NAF
74
Ecology and biology of the Pacific Walrus, Odobenus rosmarus divergens illiger
Fay, Francis H.
-
1981
NAF
73
Birds of the St. Croix River valley: Minnesota and Wisconsin
Faanes, Craig A.
-
1978
NAF
72
The California condor, 1966-76: a look at its past and future
Wilbur, Sanford R.
-
1975
NAF
71
The screech owl: its life history and population ecology in northern Ohio
Vancamp, Laurel F.; Henny, Charles J.
-
1975
NAF
70
The distribution and occurrence of the birds of Jackson County, Oregon, and surrounding areas
Browning, M. Ralph
-
1971
NAF
69
Natural history of the Swainson's warbler
Meanley, Brooke
-
1969
NAF
68
The sea otter in the eastern Pacific Ocean
Kenyon, Karl W.
-
1969
NAF
67
Natural history of the King Rail
Meanley, Brooke
-
1969
NAF
66
Mammals of Maryland
Paradiso, John L.
-
1968
NAF
65
Seven new white-winged doves from Mexico, Central America, and southwestern United States
Saunders, George B.
-
1961
NAF
64
Pelage and surface topography of the northern fur seal
Scheffer, Victor B.
-
1960
NAF
63
The trumpeter swan: its history, habits, and population in the U.S
Banko,Winston E.
-
1958
NAF
62
Birds of Maryland and the District of Columbia
Stewart, Robert E.; Robbins, Chandler S.
-
1959
NAF
61-B
Invertebrates and fishes collected in the Aleutians
Scheffer, Victor B.
-
1959
NAF
61-A
Fauna of the Aleutian Islands and Alaska Peninsula
Murie, Olaus J.
-
1950
NAF
60
Raccoons of North and Middle America
Goldman, Edward A.; Jackson, Hartley H. T.
-
1947
NAF
59
The pocket gophers (genus Thomomys) of Arizona
Goldman, Edward A.
-
1947
NAF
58
Habits, food, and economic status of the band-tailed pigeon
Neff, Johnson A.
-
1941
NAF
57
Attwater's prairie-chicken-its life history and management
Lehmann, Valgene W.
-
1938
NAF
56
Revision of the North American ground squirrels, with a classification of the North American Sciuridae
Howell, Arthur H.