Washington Water Power Company & Washington Water Power Company. Information and Special Activities Department. (1979). History of the Washington Water Power Company. Washington Water Power Company, Information and Special Activities Dept..
Цитирование в стиле Чикаго (17-е изд.)Washington Water Power Company и Washington Water Power Company. Information and Special Activities Department. History of the Washington Water Power Company. [Spokane, Wash.]: Washington Water Power Company, Information and Special Activities Dept., 1979.
Цитирование MLA (8-е изд.)Washington Water Power Company и Washington Water Power Company. Information and Special Activities Department. History of the Washington Water Power Company. Washington Water Power Company, Information and Special Activities Dept., 1979.