International standard classification of occupations major minor and unit groups ; final draft.
| Corporate Authors: | , |
|---|---|
| Formato: | Libro |
| Idioma: | English |
| Publicado: |
Geneva
[s.n.]
1957.
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| Subjects: |
| Corporate Authors: | , |
|---|---|
| Formato: | Libro |
| Idioma: | English |
| Publicado: |
Geneva
[s.n.]
1957.
|
| Subjects: |