TY  - BOOK
ED  - International Labour Office (7th: 1949: Geneva)
TI  - International standard classification of occupations: report prepared for the seventh International conference of labour statisticican (Geneva, September, 1949)
U1  - 371.425 21st
PY  - 1949///
CY  - Geneva
PB  - ILO
KW  - Professional education; Occupations-Classiciation; Education-Statistics
ER  -