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  1. 1
    Geology of the Lower Kittanning coalbed and related mining and methane emission problems in Cambria County, Pa. /
    by Iannacchione, Anthony T.
    Published 1979
    Government Document Book
  2. 2
    Methane control on longwalls with cross-measure boreholes (Lower Kittanning Coalbed) /
    by Garcia, F. (Fred)
    Published 1985
    Government Document Book
  3. 3
    Determining the source of longwall gob gas : Lower Kittanning Coalbed, Cambria County, PA /
    by Diamond, W. P. (William P.)
    Published 1992
    Government Document Microform Book
  4. 4
    Methane control on longwalls with cross-measure boreholes (Lower Kittanning coalbed) /
    by Garcia, F. (Fred)
    Published 1985
    Get full text
    Government Document Book
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