Theses of the twelfth congress of the Bulgarian Communist Party :
| Institution: | International Institute of Social History |
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| Format: | TEXT |
| Published: |
Sofia Press,
1981.
Sofia : |
| Subjects: | |
| Online Access: | http://hdl.handle.net/10622/C5A274EF-BAAB-49CD-92B8-7DF4ACD16893 |
| Published: | 1981. |
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