United States. Bureau of Reclamation. (1941). Western part of the United States showing location of federal irrigation projects (January 1941.). U.S. Dept. of the Interior, Bureau of Reclamation.
Style de citation Chicago (17e éd.)United States. Bureau of Reclamation. Western Part of the United States Showing Location of Federal Irrigation Projects. January 1941. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Reclamation, 1941.
Style de citation MLA (8e éd.)United States. Bureau of Reclamation. Western Part of the United States Showing Location of Federal Irrigation Projects. January 1941. U.S. Dept. of the Interior, Bureau of Reclamation, 1941.
Attention : ces citations peuvent ne pas être correctes à 100%.