Etkin, W. (1967). Social behavior from fish to man. University of Chicago Press.
Citazione stile Chigago Style (17a edizione)Etkin, William. Social Behavior from Fish to Man. Chicago: University of Chicago Press, 1967.
Citatione MLA (8a ed.)Etkin, William. Social Behavior from Fish to Man. University of Chicago Press, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.