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Displaying 1-1 of 1 results for author "Barton, T. M. (Timothy M.)"
Field evaluation of three longwall pillar systems in a Kentucky coal mine / by Timothy M. Barton and Christopher Mark.
- Text
- Washington, D.C. (2401 E St., N.W., MS #9800, Washington 20241) : U.S. Dept. of the Interior, Bureau of Mines, 1989.
- 1989
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