Darwin, C. R. (1891). The descent of man, and selection in relation to sex (2nd ed. rev. and augm., 23rd thousand.). John Murray.
Chicago Style (17th ed.) CitationDarwin, Charles Robert. The Descent of Man, and Selection in Relation to Sex. 2nd ed. rev. and augm., 23rd thousand. London: John Murray, 1891.
MLA (9th ed.) CitationDarwin, Charles Robert. The Descent of Man, and Selection in Relation to Sex. 2nd ed. rev. and augm., 23rd thousand. John Murray, 1891.
Warning: These citations may not always be 100% accurate.