From swamp to coal /
Describes how coal is formed by the earth and the methods used to mine it. Also discusses some of the uses of this mineral.
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| Main Author: | |
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| Format: | Book |
| Language: | English German |
| Published: |
Minneapolis :
Carolrhoda Books,
1985.
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| Series: | Carolrhoda start to finish book.
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| Subjects: |