International standard classification of occupations.
International standard classification of occupations.
- Rev. ed. 1968.
- Geneva International Labour Office 1969.
- vi, 355 p.
920713
71476976 //r84
Sw69-A-4829
Occupations--Classification.
HB2581 / .I63 1969
331.7/001/2
920713
71476976 //r84
Sw69-A-4829
Occupations--Classification.
HB2581 / .I63 1969
331.7/001/2