Northern Pacific Railway Company. (1915). Spokane and the Inland Empire. Northern Pacific Railway Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Northern Pacific Railway Company. Spokane and the Inland Empire. [Saint Paul? Minn.]: Northern Pacific Railway Company, 1915.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Northern Pacific Railway Company. Spokane and the Inland Empire. Northern Pacific Railway Company, 1915.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.