Showing 1 - 2 results of 2 for search 'Crickner, Douglas F. Zeeger, David A.', query time: 0.01s Refine Results
  1. 1

    Elements of practical coal mining.

    Published 1981
    Book

    Elements of practical coal mining.
  2. 2

    Economic evaluation of proposed mining ventures.

    Published 1959
    Book

    Economic evaluation of proposed mining ventures.

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