Cita APA

Ardrey, R. 1., & Ardrey, B. (1970). The social contract: A personal inquiry into the evolutionary sources of order and disorder. New York, N.Y.: A Delta book.

Citación estilo Chicago

Ardrey, Robert 1908-1980, y Berdine Ardrey. The Social Contract: A Personal Inquiry Into the Evolutionary Sources of Order and Disorder. New York, N.Y.: A Delta book, 1970.

Cita MLA

Ardrey, Robert 1908-1980, y Berdine Ardrey. The Social Contract: A Personal Inquiry Into the Evolutionary Sources of Order and Disorder. New York, N.Y.: A Delta book, 1970.