Geologic Factors Causing Roof Instability And Methane Emission Problems PDF Download

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Report of Investigations

Report of Investigations
Author:
Publisher:
Total Pages: 618
Release: 1975
Genre: Mineral industries
ISBN:

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Cutter Roof Failure

Cutter Roof Failure
Author: Eric R. Bauer
Publisher:
Total Pages: 28
Release: 1990
Genre: Coal mines and mining
ISBN:

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Monthly Catalog, United States Public Documents

Monthly Catalog, United States Public Documents
Author: United States. Superintendent of Documents
Publisher:
Total Pages: 1252
Release: 1973
Genre: Government publications
ISBN:

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February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.