APA (7th ed.) Citation

Hersen, M., & Sledge, W. (2002). Encyclopedia of psychotherapy. Academic Press.

Chicago Style (17th ed.) Citation

Hersen, Michel, and William Sledge. Encyclopedia of Psychotherapy. Amsterdam: Academic Press, 2002.

MLA (9th ed.) Citation

Hersen, Michel, and William Sledge. Encyclopedia of Psychotherapy. Academic Press, 2002.

Warning: These citations may not always be 100% accurate.