Leighton, M. M. (1919). The road building sands and gravels of Washington. F. M. Lamborn, public printer.
Style de citation Chicago (17e éd.)Leighton, Morris M. The Road Building Sands and Gravels of Washington. Olympia: F. M. Lamborn, public printer, 1919.
Style de citation MLA (8e éd.)Leighton, Morris M. The Road Building Sands and Gravels of Washington. F. M. Lamborn, public printer, 1919.
Attention : ces citations peuvent ne pas être correctes à 100%.