Cita APA (7a ed.)

Singer, P. (2000). A Darwinian Left: Politics, evolution and cooperation. Yale University Press.

Cita Chicago Style (17a ed.)

Singer, Peter. A Darwinian Left: Politics, Evolution and Cooperation. New Haven [etc.]: Yale University Press, 2000.

Cita MLA (9a ed.)

Singer, Peter. A Darwinian Left: Politics, Evolution and Cooperation. Yale University Press, 2000.