Ardrey, B. (1970). The social contract: A personal inquiry into the evolutionary sources of order and disorder. New York: Atheneum.
Chicago-stil citatArdrey, Berdine. The Social Contract: A Personal Inquiry Into the Evolutionary Sources of Order and Disorder. New York: Atheneum, 1970.
MLA-referensArdrey, Berdine. The Social Contract: A Personal Inquiry Into the Evolutionary Sources of Order and Disorder. New York: Atheneum, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.