Cita APA (7a ed.)

Leahy, R. L. (2003). Cognitive therapy techniques: A practitioner's guide. Guilford.

Cita Chicago Style (17a ed.)

Leahy, Robert L. Cognitive Therapy Techniques: A Practitioner's Guide. New York [etc.]: Guilford, 2003.

Cita MLA (9a ed.)

Leahy, Robert L. Cognitive Therapy Techniques: A Practitioner's Guide. Guilford, 2003.