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