Style de citation APA (7e éd.)

Washington State Planning Council & United States. National Park Service. (1941). A study of parks, parkways, and recreational areas.

Style de citation Chicago (17e éd.)

Washington State Planning Council et United States. National Park Service. A Study of Parks, Parkways, and Recreational Areas. [Olympia, 1941.

Style de citation MLA (8e éd.)

Washington State Planning Council et United States. National Park Service. A Study of Parks, Parkways, and Recreational Areas. 1941.

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