National Vocational Guidance Association & National Occupational Conference (U.S.). (1933). Occupations. National Occupational Conference.
Citação norma ChicagoNational Vocational Guidance Association and National Occupational Conference (U.S.). Occupations. New York City: National Occupational Conference, 1933.
Citação norma MLANational Vocational Guidance Association and National Occupational Conference (U.S.). Occupations. National Occupational Conference, 1933.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.