The descent of man and selection in relation to sex.

MLA

Darwin, Charles. The Descent of Man and Selection In Relation to Sex. New edition, with illustrations London: Murray, 1901.

APA

Darwin, C. (1901). The descent of man and selection in relation to sex. New edition, with illustrations London: Murray.

Chicago

Darwin, Charles, The Descent of Man and Selection In Relation to Sex. New edition, with illustrations London: Murray, 1901.