Dyfyniad APA

(1972). Sexual selection and the descent of man, 1871-1971. Aldine Publishing.

Dyfyniad Arddull Chicago

Sexual Selection and the Descent of Man, 1871-1971. Chicago: Aldine Publishing, 1972.

Dyfyniad MLA

Sexual Selection and the Descent of Man, 1871-1971. Aldine Publishing, 1972.

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