Rapport van de enquête :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
s.n.],
1967.
[S.l. : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/68D7A0D1-B1C6-46CB-A990-FBA0D4EB49A9 |
| Published: | 1967. |
|---|