Não informado. (1961). Counselor Education and Supervision. American Association for Counseling and Development.
Chicago-referens (17:e uppl.)Não informado. Counselor Education and Supervision. Alexandria, Va: American Association for Counseling and Development, 1961.
MLA-referens (8:e uppl.)Não informado. Counselor Education and Supervision. American Association for Counseling and Development, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.