APA-viite (7. p.)

Ardrey, R. (1970). The social contract: A personal enquiry into the evolutionary sources of order and disorder. Collins.

Chicago-viite (17. p.)

Ardrey, Robert. The Social Contract: A Personal Enquiry into the Evolutionary Sources of Order and Disorder. London: Collins, 1970.

MLA-viite (9. p.)

Ardrey, Robert. The Social Contract: A Personal Enquiry into the Evolutionary Sources of Order and Disorder. Collins, 1970.