Cita APA (7th ed.)

Etkin, W. (1967). Social behavior from fish to man. University of Chicago Press.

Cita Chicago (17th ed.)

Etkin, William. Social Behavior from Fish to Man. Chicago: University of Chicago Press, 1967.

Cita MLA (8th ed.)

Etkin, William. Social Behavior from Fish to Man. University of Chicago Press, 1967.