Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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