APA (7th ed.) Citation

Beck, J. S. (2005). Cognitive therapy for challenging problems: What to do when the basics don't work. Guilford Press.

Chicago Style (17th ed.) Citation

Beck, Judith S. Cognitive Therapy for Challenging Problems: What to Do When the Basics Don't Work. New York: Guilford Press, 2005.

MLA (9th ed.) Citation

Beck, Judith S. Cognitive Therapy for Challenging Problems: What to Do When the Basics Don't Work. Guilford Press, 2005.