APA (7th ed.) Citation

Ridley, M. (1996). Evolution (2nd ed.). Blackwell Science.

Chicago Style (17th ed.) Citation

Ridley, Mark. Evolution. 2nd ed. Cambridge, Mass., USA: Blackwell Science, 1996.

MLA (9th ed.) Citation

Ridley, Mark. Evolution. 2nd ed. Blackwell Science, 1996.