Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.