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  1. 1
    Industrial dust explosions : Symposium on Industrial Dust Explosions : Pittsburgh, Pennsylvania, 10-12 June 1986 /
    Published 1987
    Conference Proceeding Book
  2. 2
    Analyses of clay, shale, and related materials : southwestern counties /
    by Johnson, Stanley Stevens
    Published 1965
    Book
  3. 3
    Analyses of clay and related materials : eastern counties /
    by Johnson, Stanley S.
    Published 1967
    Book
  4. 4
    The mineral industry of Arizona in 1971.
    by Moore, Lyman
    Published 1973
    Book
  5. 5
    Iron resources of California /
    Published 1948
    Book
  6. 6
    Hydrogenation of the petrographic constituents of Pittsburgh seam coal : by C. C. Wright and George C. Sprunk. Joint investigation with the United States Bureau of Mines, Pittsburgh Experiment Station and made possible through the financial assistance rendered by Bituminous Coal Research, inc.
    by Wright, Calvert Charles, 1905-
    Published 1939
    Book
  7. 7
    Hydrogenation of the petrographic constituents of High Splint seam coal /
    by Wright, Calvert Charles, 1905-
    Published 1939
    Book
  8. 8
    Coal losses in Ohio /
    Book
  9. 9
    Petroleum engineering in the Papoose oil field, Okfuskee and Hughes Counties, Oklahoma /
    by Bunn, John R.
    Published 1926
    Book
  10. 10
    Clay and shale for lightweight aggregate in Alabama /
    Book
  11. 11
    Resource and beneficiation studies of copperbearing pyrite ore : Pyriton, Clay County, Alabama /
    by Lamont, W. E.
    Published 1964
    Book
  12. 12
    Determination of ash in coals unusually high in calcite and pyrite /
    by Rees, Orin Wainwright, 1898-
    Published 1942
    Book
  13. 13
    Strippable coal in the northern Cumberland plateau area of Tennessee /
    by Johnson, Robert C.
    Published 1972
    Book
  14. 14
    Placer mining in Nevada /
    by Smith, Alfred Merritt
    Published 1932
    Book
  15. 15
    Placer mining in Nevada /
    by Vanderburg, William O.
    Published 1936
    Book
  16. 16
    Clay and shale of northwestern Alabama /
    by Clarke, Otis M.
    Published 1966
    Book
  17. 17
    Kyanite and vermiculite deposits of Georgia /
    Book
  18. 18
    Analyses of Alabama coals /
    Published 1926
    Book
  19. 19
    Function of natural gas in the production of oil /
    Book
  20. 20
    Phase relations of gas-condensate fluids /
    by Eilerts, C. Kenneth
    Published 1957
    Book
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