توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Davis, R. C. (1932). Ability in social and racial classes: Some physiological correlates. Century for the Institute for Research in the Social Sciences, University of Virginia.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Davis, Roland Clark. Ability in Social and Racial Classes: Some Physiological Correlates. New York: Century for the Institute for Research in the Social Sciences, University of Virginia, 1932.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Davis, Roland Clark. Ability in Social and Racial Classes: Some Physiological Correlates. Century for the Institute for Research in the Social Sciences, University of Virginia, 1932.