International coal preparation congress 8. USSR, Donetsk May 21-26, 1979 : congress proceedings. Vol. 1 /
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| Main Author: | |
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| Format: | Book |
| Language: | Czech |
| Published: |
Donetsk :
Vneštorgizdat,
1979
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| Series: | rz1
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| Online Access: |
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| Physical Description: | 307 s. + 2 l. |
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