APA (7e ed.) Bronvermelding

Bell, P. R. (1959). Darwin's biological work: Some aspects reconsidered. University Press.

Chicago (17e ed.) Bronvermelding

Bell, Peter Robert. Darwin's Biological Work: Some Aspects Reconsidered. Cambridge: University Press, 1959.

MLA (8e ed.) Bronvermelding

Bell, Peter Robert. Darwin's Biological Work: Some Aspects Reconsidered. University Press, 1959.

Let op: Deze citaties zijn niet altijd 100% accuraat.