Ingbretsen, R. M. (1988). Hillyard: The engines and the craftsmen. Inland Empire Railway Historical Society.
Style de citation Chicago (17e éd.)Ingbretsen, Roger M. Hillyard: The Engines and the Craftsmen. Inland Empire Railway Historical Society, 1988.
Style de citation MLA (8e éd.)Ingbretsen, Roger M. Hillyard: The Engines and the Craftsmen. Inland Empire Railway Historical Society, 1988.
Attention : ces citations peuvent ne pas être correctes à 100%.