Cita APA (7a ed.)

Okasha, S. (2008). Evolution and the levels of selection (1st published in pbk.). Oxford University Press.

Cita Chicago Style (17a ed.)

Okasha, Samir. Evolution and the Levels of Selection. 1st published in pbk. Oxford [etc.]: Oxford University Press, 2008.

Cita MLA (9a ed.)

Okasha, Samir. Evolution and the Levels of Selection. 1st published in pbk. Oxford University Press, 2008.