Great Northern Railway Company (U.S.), Schaeffer, C. E., & Reiss, W. (1958). Blackfoot Indians of Glacier National Park. Great Northern Railway Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Great Northern Railway Company (U.S.), Claude E. Schaeffer, و Winold Reiss. Blackfoot Indians of Glacier National Park. St. Paul, Minn.: Great Northern Railway Co., 1958.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Great Northern Railway Company (U.S.), et al. Blackfoot Indians of Glacier National Park. Great Northern Railway Co., 1958.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.