Steekproefenquête naar de beroepsbevolking, 1977 :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
[s.n.],
1976.
Luxemburg : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/FA4EAA65-5885-41C3-B776-60C4955814D5 |