VI congreso de la COB :
Tom. 1.
| Institution: | International Institute of Social History |
|---|---|
| Format: | TEXT |
| Published: |
Hisbol,
1985.
La Paz : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/2D529E28-4D38-4DF1-A340-789065893483 |