توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Surface, F. M. (1928). The grain trade during the world war, being a history of the Food administration Grain corporation and the United States grain corporation. Macmillan Co.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Surface, Frank Macy. The Grain Trade During the World War, Being a History of the Food Administration Grain Corporation and the United States Grain Corporation. New York: Macmillan Co, 1928.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Surface, Frank Macy. The Grain Trade During the World War, Being a History of the Food Administration Grain Corporation and the United States Grain Corporation. Macmillan Co, 1928.