APA (7th ed.) Citation

Freud, S., & Carter, D. R. (2011). Freud on cocaine. Hesperus.

Chicago Style (17th ed.) Citation

Freud, Sigmund, and David R. Carter. Freud on Cocaine. London: Hesperus, 2011.

MLA (9th ed.) Citation

Freud, Sigmund, and David R. Carter. Freud on Cocaine. Hesperus, 2011.