APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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