KOTTLER, J. A. (1986). On Being A Therapist / Jeffrey A. Kottler. Jossey-Bass.
Lua i Stíl Chicago (17ú heag.)KOTTLER, Jeffrey A. On Being A Therapist / Jeffrey A. Kottler. Jossey-Bass, 1986.
Lua MLA (8ú heag.)KOTTLER, Jeffrey A. On Being A Therapist / Jeffrey A. Kottler. Jossey-Bass, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.