Proceedings of the Midwest Bituminous Coal Conference held at Purdue University, April 9-10-11, 1930.
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| Format: | Conference Proceeding Book |
| Language: | English |
| Published: |
Lafayette, Ind. :
Purdue University,
1930.
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| Series: | Engineering extension series (Purdue University. Department of Engineering Extension) ;
no. 22. |
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| Physical Description: | 219 pages : illustrations (map) diagrams ; 23 cm. |
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