Cotton, H. A. (1912). Some problems in the study of heredity in mental diseases. Carnegie Institution of Washington, Eugenics Record Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cotton, Henry Andrews. Some Problems in the Study of Heredity in Mental Diseases. Cold Spring Harbor, N.Y.: Carnegie Institution of Washington, Eugenics Record Office, 1912.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cotton, Henry Andrews. Some Problems in the Study of Heredity in Mental Diseases. Carnegie Institution of Washington, Eugenics Record Office, 1912.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.