Style de citation APA (7e éd.)

Não informado. (2001). Statistical digest. U.S. Fish and Wildlife Service.

Style de citation Chicago (17e éd.)

Não informado. Statistical Digest. Washington: U.S. Fish and Wildlife Service, 2001.

Style de citation MLA (8e éd.)

Não informado. Statistical Digest. U.S. Fish and Wildlife Service, 2001.

Attention : ces citations peuvent ne pas être correctes à 100%.