Citazione Stile APA (7a Edizione)

Walker, K. (1969). The physiology of sex and its social implications (2nd ed. rev.). Penguin Books.

Citazione stile Chigago Style (17a edizione)

Walker, Kenneth. The Physiology of Sex and Its Social Implications. 2nd ed. rev. Harmondsworth, Middlesex: Penguin Books, 1969.

Citatione MLA (8a ed.)

Walker, Kenneth. The Physiology of Sex and Its Social Implications. 2nd ed. rev. Penguin Books, 1969.