APA (7th ed.) Citation

Leahy, R. L. (2004). Contemporary cognitive therapy: Theory, research, and practice. Guilford Press.

Chicago Style (17th ed.) Citation

Leahy, Robert L. Contemporary Cognitive Therapy: Theory, Research, and Practice. New York: Guilford Press, 2004.

MLA (9th ed.) Citation

Leahy, Robert L. Contemporary Cognitive Therapy: Theory, Research, and Practice. Guilford Press, 2004.