APA stil citiranja

Lieberman, N. J. (1977). Playfulness: Playfulness : its ralationship to imagination and creativity. New York; San Francisco; London: Academic Press.

Chicago stil citiranja

Lieberman, Nina J. Playfulness: Playfulness : its ralationship to imagination and creativity. New York; San Francisco; London: Academic Press, 1977.

MLA stil citiranja

Lieberman, Nina J. Playfulness: Playfulness : its ralationship to imagination and creativity. New York; San Francisco; London: Academic Press, 1977.