APA

United States, . (1972). Avian anatomy: integment. Washington: U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Chicago

United States, . 1972. Avian anatomy: integment. Washington: U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Harvard

United States, . (1972). Avian anatomy: integment. Washington: U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off.

MLA

United States, . Avian anatomy: integment. Washington: U.S. Agricultural Research Service; for sale by the Supt. of Docs., U.S. Govt. Print. Off. 1972.