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)