Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1969)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1971)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1972)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1973)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1974)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1975)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1977)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1979)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1980)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1981)

Special scientific report. Wildlife - U.S. Fish; Wildlife Service (The Service, 1982)