Schwantes, C. A., & Ronda, J. P. (2008). The West the railroads made. University of Washington Press in association with Washington State Historical Society and the John W. Barriger III National Railroad Library at the St. Louis Mercantile Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Schwantes, Carlos A., و James P. Ronda. The West the Railroads Made. Seattle: University of Washington Press in association with Washington State Historical Society and the John W. Barriger III National Railroad Library at the St. Louis Mercantile Library, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Schwantes, Carlos A., و James P. Ronda. The West the Railroads Made. University of Washington Press in association with Washington State Historical Society and the John W. Barriger III National Railroad Library at the St. Louis Mercantile Library, 2008.