Cita APA (7a ed.)
Darwin, C. R. (1909). The descent of man and selection in relation to sex (2a. ed. rev. y augm.). D. Appleton and company.
Cita Chicago Style (17a ed.)
Darwin, Charles Robert. The Descent of Man and Selection in Relation to Sex. 2a. ed. rev. y augm. New York: D. Appleton and company, 1909.
Cita MLA (9a ed.)
Darwin, Charles Robert. The Descent of Man and Selection in Relation to Sex. 2a. ed. rev. y augm. D. Appleton and company, 1909.
Precaución: Estas citas no son 100% exactas.