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  1. 1
    Coal mine modernization.
    Serial
  2. 2
    Report.
    Serial
  3. 3
    Session papers.
    Serial
  4. 4
    Keystone coal industry manual.
    Published 2009
    Serial
  5. 5
    Proceedings of the ... Annual Institute /
    Published 1980
    Serial
  6. 6
    Coal facts.
    Published 1975
    Serial
  7. 7
    Annual bulletin of coal statistics for Europe.
    Serial
  8. 8
    Coal information report.
    Published 1983
    Serial
  9. 9
    Keystone coal buyers manual.
    Published 1935
    Serial
  10. 10
    Coal mines.
    Published 1910
    Serial
  11. 11
    Geomechanics of coal mining report.
    Serial
  12. 12
    Annual coal report of Illinois.
    Published 1911
    Serial
  13. 13
    Coal report of Illinois.
    Serial
  14. 14
    Facts about coal.
    Published 1982
    Serial
  15. 15
    Environmental development plan.
    Government Document Serial
  16. 16
    Annual report and achievements - Mining Enforcement and Safety Administration.
    Government Document Serial
  17. 17
    Bituminous coal and lignite production and mine operations.
    Government Document Serial
  18. 18
    Coal mining research and development in fiscal year ...
    Published 1978
    Government Document Microform Serial
  19. 19
    Coal data, a reference /
    Published 1995
    Government Document Serial
  20. 20
    Coal-- Pennsylvania anthracite /
    Published 1980
    Government Document Serial
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