Metadata
| Work Title | Circular 18 |
|---|---|
| Subtitle | Mineral Industries Correspondence and Extension Class Instruction |
| Access | |
| Creators |
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| Keyword |
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| License | Attribution-NoDerivs 3.0 United States |
| Work Type | Book |
| Publisher |
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| Publication Date | 1944 |
| Deposited | September 17, 2014 |
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