APA-referens

Peterson, C., & Seligman, M. E. P. (2004). Character strengths and virtues. American Psychological Association ; Oxford University Press.

Chicago-stil citat

Peterson, Christopher, och Martin E. P. Seligman. Character Strengths and Virtues. Washington, DC : New York: American Psychological Association ; Oxford University Press, 2004.

MLA-referens

Peterson, Christopher, och Martin E. P. Seligman. Character Strengths and Virtues. American Psychological Association ; Oxford University Press, 2004.