International standard classification of occupations : ISCO-88.
International standard classification of occupations : ISCO-88.
- [Rev. ed. 1988].
- Geneva : International Labour Office, 1990.
- vii, 457 p. ; 28 cm.
9221064387 (hbk.)
Occupations--Classification.
REF HB2582 INT
9221064387 (hbk.)
Occupations--Classification.
REF HB2582 INT