Clay mineral standards. American Petroleum Institute Project 49: Preliminary reports.
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
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New York,
Columbia University,
1949-50.
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| Item Description: | On cover: Reference clay minerals. A. P. I. Research Project 49. |
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| Physical Description: | 8 nos. in 1. illus. 29 cm. |