APA (7e ed.) Bronvermelding
Beck, A. T., & Alford, B. A. (2009). Depression: Causes and treatment (Second edition.). University of Pennsylvania Press.
Chicago (17e ed.) Bronvermelding
Beck, Aaron T., en Brad A. Alford. Depression: Causes and Treatment. Second edition. Philadelphia, Pennsylvania: University of Pennsylvania Press, 2009.
MLA (9e ed.) Bronvermelding
Beck, Aaron T., en Brad A. Alford. Depression: Causes and Treatment. Second edition. University of Pennsylvania Press, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.