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1 - 25 of 2
| Author | Title | Subject | Date | Publication Type | ||
|---|---|---|---|---|---|---|
| 1 |
 | Gecim, Mustafa Kemal | Time studies in underground coal mining | Time study; Coal mines and mining | 1964-06 | thesis |
| 2 |
 | Mumcu, Hasan H | Study of various coal mines in Utah, Colorado, and Wyoming | Coal mines and mining | 1950-05 | thesis |
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