(1978). International standard classification of occupations: Report prepared for the Seventh International Conference of Labour Statisticians (Geneva, September 1949). Krauss.
Chicago-Zitierstil (17. Ausg.)International Standard Classification of Occupations: Report Prepared for the Seventh International Conference of Labour Statisticians (Geneva, September 1949). Nendeln: Krauss, 1978.
MLA-Zitierstil (9. Ausg.)International Standard Classification of Occupations: Report Prepared for the Seventh International Conference of Labour Statisticians (Geneva, September 1949). Krauss, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.