Cita APA (7a ed.)

Clark, M. S. (1991). Prosocial behavior. Sage.

Cita Chicago Style (17a ed.)

Clark, Margaret Sydnor. Prosocial Behavior. Newbury Park [etc.]: Sage, 1991.

Cita MLA (9a ed.)

Clark, Margaret Sydnor. Prosocial Behavior. Sage, 1991.