APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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