Plemennye i kulʹturnye sv︠i︡azi bolgarskogo i russkogo narodov /
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| Format: | Book |
| Language: | Russian |
| Published: |
Moskva :
Izd-vo Akademii nauk SSSR,
1944
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| Series: | Nauchno-popul︠i︡arna︠i︡a seri︠i︡a
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| Subjects: |