Bibliographic Details
| Statement of responsibility: | Emil Georgiev |
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| Main Author: |
Georgiev, Emil I., 1910-1982
(Author) |
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| Format: | Book
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| Language: | Bulgarian |
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| Published: |
Sofija : Izdat. na Bălg. Akad. na Naukite,
1966
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| Physical Description: | 321 S. |
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| Subjects (GND): |
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