Cita APA (7a ed.)
Darwin, C., & Secord, J. A. (2008). Evolutionary writings. Oxford University Press.
Cita Chicago Style (17a ed.)
Darwin, Charles, y James A. Secord. Evolutionary Writings. Oxford ; New York: Oxford University Press, 2008.
Cita MLA (9a ed.)
Darwin, Charles, y James A. Secord. Evolutionary Writings. Oxford University Press, 2008.
Precaución: Estas citas no son 100% exactas.