Cita APA (7a ed.)

Greif, G. L. (2009). Buddy system: Understanding male friendships. Oxford University Press.

Cita Chicago Style (17a ed.)

Greif, Geoffrey L. Buddy System: Understanding Male Friendships. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (8a ed.)

Greif, Geoffrey L. Buddy System: Understanding Male Friendships. Oxford University Press, 2009.