Colman, A. (1992). Cooperation and competition in humans and animals. Van Nostrand Reinhold.
Cita Chicago (17th ed.)Colman, Andrew. Cooperation and Competition in Humans and Animals. Wokingham, Berkshire, Eng: Van Nostrand Reinhold, 1992.
Cita MLA (9th ed.)Colman, Andrew. Cooperation and Competition in Humans and Animals. Van Nostrand Reinhold, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.