توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Bureau of Railway Economics (Washington, D.C.), & Association of American Railroads. Bureau of Railway Economics. (1920). Railway revenues and expenses. The Bureau.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Bureau of Railway Economics (Washington, D.C.), و Association of American Railroads. Bureau of Railway Economics. Railway Revenues and Expenses. Washington, D.C.: The Bureau, 1920.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Bureau of Railway Economics (Washington, D.C.), و Association of American Railroads. Bureau of Railway Economics. Railway Revenues and Expenses. The Bureau, 1920.