APA (7th ed.) Citation

Beck, A. T., & Alford, B. A. (2009). Depression: Causes and treatment (Second edition.). University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Beck, Aaron T., and Brad A. Alford. Depression: Causes and Treatment. Second edition. Philadelphia, Pennsylvania: University of Pennsylvania Press, 2009.

MLA (9th ed.) Citation

Beck, Aaron T., and Brad A. Alford. Depression: Causes and Treatment. Second edition. University of Pennsylvania Press, 2009.