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Author Kertis, Carla A.

Title Reducing hazards in underground coal mines through the recognition and delineation of coalbed discontinuities caused by ancient channel processes [electronic resource] / by Carla A. Kertis.

Imprint [Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1985]


Location Call No. OPAC Message Status
 Axe Federal Documents Online  HE 20.7131:8987    ---  Available

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