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Geologic factors causing roof instability and methane emission problems: The Lower Kittanning coalbed, Cambria County, Pa (Report of investigations / United ... Department of the Interior, Bureau of Mines) | Unknown Binding

by C. M McCulloch (Author)

1 Used starting at: $8.95


Binding:  Unknown Binding
Publisher:  U.S. Dept. of Interior, Bureau of Mines
Page Count:  25 Pages
Publication Date:  1973
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