Não informado. (1934). Occupations: The vocational guidance journal. National Vocational Guidance Association.
Chicago-referens (17:e uppl.)Não informado. Occupations: The Vocational Guidance Journal. New York: National Vocational Guidance Association, 1934.
MLA-referens (8:e uppl.)Não informado. Occupations: The Vocational Guidance Journal. National Vocational Guidance Association, 1934.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.