Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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