Não informado. (1968). Focus on guidance. American Personnel and Guidance Association.
Chicago-referens (17:e uppl.)Não informado. Focus on Guidance. Denver, Colo: American Personnel and Guidance Association, 1968.
MLA-referens (8:e uppl.)Não informado. Focus on Guidance. American Personnel and Guidance Association, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.