Author: | Smith, Joseph Blake |
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Additional Authors: | Knox, Clinton C., Ayler, Maynard F. |
Year: | 1972 |
Document Type: | N/A |
SUDOC: | I 28.27:8538 |
Series: | United States Bureau of Mines Reports |
Report Number: | I. C. 8538 |
Subjects: | Strip mining. |
Coal mines and mining -- Wyoming. | |
Link: | http://digital.library.unt.edu/ark:/67531/metadc170835/ |