FOSSIL PEAT OF THE ILLINOIS BASIN : A GUIDE TO THE STUDY OF COAL BALLS OF PENNSY IVANIAN AGE /
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| Main Authors: | , , |
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| Format: | Texto biblioteca |
| Published: |
URBANA, ILL. : ILLINOIS STATE GEOLOGICAL SURVEY
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| Subjects: | PALEOBOTANICA-PENSILVANIA, BOLA DE CARBON-ILLINOIS-VALLE DE ILLINOIS, |
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