توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Van Norman, H. E. (1915). First lessons in dairying: A handbook setting forth the underlying principles of dairying for the student beginner in the laboratory and on the farm. Orange Judd Co..

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Van Norman, H. E. First Lessons in Dairying: A Handbook Setting Forth the Underlying Principles of Dairying for the Student Beginner in the Laboratory and on the Farm. New York: Orange Judd Co., 1915.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Van Norman, H. E. First Lessons in Dairying: A Handbook Setting Forth the Underlying Principles of Dairying for the Student Beginner in the Laboratory and on the Farm. Orange Judd Co., 1915.