APA (7th ed.) Citation

Butler, C. (2004). Schema therapy: A practitioners guide (book). British Journal of Clinical Psychology, 43(2), 218.

Chicago Style (17th ed.) Citation

Butler, Clare. "Schema Therapy: A Practitioners Guide (book)." British Journal of Clinical Psychology 43, no. 2 (2004): 218.

MLA (9th ed.) Citation

Butler, Clare. "Schema Therapy: A Practitioners Guide (book)." British Journal of Clinical Psychology, vol. 43, no. 2, 2004, p. 218.