Darwin, C., Barrett, P. H., & Freeman, R. B. (1986). The works of Charles Darwin: Ed. by Paul H. Barrett & R. B. Freeman. Pickering.
Chicago (17e ed.) BronvermeldingDarwin, Charles, Paul H. Barrett, en R. B. Freeman. The Works of Charles Darwin: Ed. by Paul H. Barrett & R. B. Freeman. London: Pickering, 1986.
MLA (8e ed.) BronvermeldingDarwin, Charles, et al. The Works of Charles Darwin: Ed. by Paul H. Barrett & R. B. Freeman. Pickering, 1986.
Let op: Deze citaties zijn niet altijd 100% accuraat.