APA (7th ed.) Zitazioa

Darwin, C. (1981). The descent of man, and selection in relation to sex. Princeton University Press.

Chicago Style (17th ed.) Zitazioa

Darwin, Charles. The Descent of Man, and Selection in Relation to Sex. Princeton, N.J.: Princeton University Press, 1981.

MLA (9th ed.) Zitazioa

Darwin, Charles. The Descent of Man, and Selection in Relation to Sex. Princeton University Press, 1981.