Author: | Hee, Olman |
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Year: | 1969 |
Document Type: | N/A |
SUDOC: | I 28.27:8418 |
Series: | United States Bureau of Mines Reports |
Report Number: | I. C. 8418 |
Subjects: | Phosphate rock -- United States. |
Potash industries and trade -- United States. | |
Nitrogen industries -- United States. | |
Link: | http://digital.library.unt.edu/ark:/67531/metadc170810/ |