Mining of Thin Coal Beds in the Anthracite Region of Pennsylvania
| Author | : Dever Campbell Ashmead |
| Publisher | : |
| Total Pages | : 162 |
| Release | : 1927 |
| Genre | : Anthracite coal |
| ISBN | : |
Mining Of Thin Coal Beds In The Anthracite Region Of Pennsylvania
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Mining of Thin Coal Beds in the Anthracite Region of Pennsylvania
| Author | : Dever Campbell Ashmead |
| Publisher | : |
| Total Pages | : 113 |
| Release | : 1927 |
| Genre | : Anthracite coal |
| ISBN | : |
Pumped-slurry Backfilling of Abandoned Coal Mine Workings for Subsidence Control at Rock Springs, Wyo
| Author | : Gary J. Colaizzi |
| Publisher | : |
| Total Pages | : 108 |
| Release | : 1981 |
| Genre | : Abandoned coal mines |
| ISBN | : |
Fluorspar: Its Mining, Milling, and Utilization with a Chapter on Cryolite
| Author | : Raymond Bardeen Ladoo |
| Publisher | : |
| Total Pages | : 636 |
| Release | : 1927 |
| Genre | : Cryolite |
| ISBN | : |
