On the work with children and youth /
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Foreign Languages Publishing House,
1978.
Pyongyang : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/62E672DC-104A-41B4-88B8-A7BBBD52F76D |