Howard, J. (2001). Darwin: A very short introduction. Oxford University Press.
Cita Chicago Style (17a ed.)Howard, Jonathan. Darwin: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2001.
Cita MLA (9a ed.)Howard, Jonathan. Darwin: A Very Short Introduction. Oxford University Press, 2001.
Precaución: Estas citas no son 100% exactas.