Washington (State). Division of Mines and Mining. (1940). Directory of Washington metallic mining properties. [s.n.].
Style de citation Chicago (17e éd.)Washington (State). Division of Mines and Mining. Directory of Washington Metallic Mining Properties. Olympia, Wash.: [s.n.], 1940.
Style de citation MLA (8e éd.)Washington (State). Division of Mines and Mining. Directory of Washington Metallic Mining Properties. [s.n.], 1940.
Attention : ces citations peuvent ne pas être correctes à 100%.