Kottler, J. A., & Blau, D. S. (1989). The imperfect therapist: Learning from failure in therapeutic practice. Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)Kottler, Jeffrey A., agus Diane S. Blau. The Imperfect Therapist: Learning from Failure in Therapeutic Practice. San Francisco, Calif: Jossey-Bass, 1989.
Lua MLA (9ú heag.)Kottler, Jeffrey A., agus Diane S. Blau. The Imperfect Therapist: Learning from Failure in Therapeutic Practice. Jossey-Bass, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.