In-service training :
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Vuga,
1970.
's-Gravenhage : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/C3A8695D-A0EE-4389-B037-E68FBC8D985E |
| Published: | 1970. |
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