APA (7th ed.) Citation

U.S. Fish and Wildlife Service. Office of Endangered Species. (1980). Liaison conservation directory for endangered and threatened species (4 th ed.). The Service.

Chicago Style (17th ed.) Citation

U.S. Fish and Wildlife Service. Office of Endangered Species. Liaison Conservation Directory for Endangered and Threatened Species. 4 th ed. Washington, D.C.: The Service, 1980.

MLA (9th ed.) Citation

U.S. Fish and Wildlife Service. Office of Endangered Species. Liaison Conservation Directory for Endangered and Threatened Species. 4 th ed. The Service, 1980.