Washington Water Power Company. (1964). The Washington Water Power Company, 1889-1964: 75 years of service to Spokane and the Inland Empire. Spokesman-Review.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington Water Power Company. The Washington Water Power Company, 1889-1964: 75 Years of Service to Spokane and the Inland Empire. [Spokane: Spokesman-Review, 1964.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington Water Power Company. The Washington Water Power Company, 1889-1964: 75 Years of Service to Spokane and the Inland Empire. Spokesman-Review, 1964.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.