(1987). The encyclopedia of careers and vocational guidance: Selecting a technician's career (7th ed.). J.G. Ferguson publishing co..
Chicago Style (17. basım) AtıfThe Encyclopedia of Careers and Vocational Guidance: Selecting a Technician's Career. 7th ed. Chicago: J.G. Ferguson publishing co., 1987.
MLA (9th ed.) AtıfThe Encyclopedia of Careers and Vocational Guidance: Selecting a Technician's Career. 7th ed. J.G. Ferguson publishing co., 1987.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..