APA (7th ed.) Citation

Rachman, S., & De Silva, P. (2009). Obsessive-compulsive disorder (4th ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Rachman, Stanley, and Padmal De Silva. Obsessive-compulsive Disorder. 4th ed. Oxford ; New York: Oxford University Press, 2009.

MLA (9th ed.) Citation

Rachman, Stanley, and Padmal De Silva. Obsessive-compulsive Disorder. 4th ed. Oxford University Press, 2009.