Walker, C. (1981). Clinical practice of psychology: A guide for mental health professionals. Pergamon.
Lua i Stíl Chicago (17ú heag.)Walker, C.Eugene. Clinical Practice of Psychology: A Guide for Mental Health Professionals. New York: Pergamon, 1981.
Lua MLA (9ú heag.)Walker, C.Eugene. Clinical Practice of Psychology: A Guide for Mental Health Professionals. Pergamon, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.