APA (7th ed.) Citation

Weiss, J. (1993). How psychotherapy works: Process and technique. Guilford Press.

Chicago Style (17th ed.) Citation

Weiss, Joseph. How Psychotherapy Works: Process and Technique. New York [u.a.]: Guilford Press, 1993.

MLA (9th ed.) Citation

Weiss, Joseph. How Psychotherapy Works: Process and Technique. Guilford Press, 1993.