(1987). The encyclopedia of careers and vocational guidance: Selecting a technician's career (7th ed.). J.G. Ferguson publishing co..
Chicago-Zitierstil (17. Ausg.)The Encyclopedia of Careers and Vocational Guidance: Selecting a Technician's Career. 7th ed. Chicago: J.G. Ferguson publishing co., 1987.
MLA-Zitierstil (9. Ausg.)The Encyclopedia of Careers and Vocational Guidance: Selecting a Technician's Career. 7th ed. J.G. Ferguson publishing co., 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.