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  • Book cover of Chemistry, Analysis and Interpretation of Mine Atmospheres

    Chemistry, Analysis and Interpretation of Mine Atmospheres

    William G. Humphrey

     · 1989

  • Book cover of Use of Vacutainers for Collection of Mine Atmosphere Samples

    Use of Vacutainers for Collection of Mine Atmosphere Samples

    Robert W. Freedman, William G. Humphrey, Robert L. Craft

     · 1975

  • No image available

    Use of Vacutainers for Collection of Mine Atmosphere Samples

    Robert W. Freedman

     · 1975

  • No image available

    Chemistry, Analysis, and Interpretation of Mine Atmospheres

    William G. Humphrey

     · 1989

  • No image available

    The Effect of Parent Education on the School Success of Culturally Deprived Children: A Research Proposal

    William G. Humphrey, Richard G. Larson, James L. Olson

     · 1965

  • No image available

    Statistical Analysis of Methane Concentration Fluctuations: Produced by Incomplete Mixing of Methane and Air at a Model Coal Mine Working Face

    A. W. Deurbrouck, Andrea E. Raddatz, Arthur M. Hartstein, C. Edward Chamberlain, Charles R. Summers, E. G. Valdez, Francis P. Miknis, Fred N. Kissell, George S. Koch, Henry E. Blake, Howard E. Parkinson, J. R. Allsup, John B. Janus, John O. Atkins, Judith A. Eisele, M. B. Shirts, Richard J. Bielicki, Seth C. Schaefer, Thomas C. Wesson, Willard L. Hunter, Robert W. Freedman, Andrew W. Decora, Boyd D. Nash, David J. MacDonald, David R. Forshey, Donald J. Bauer, Frederick E. Armstrong, J. H. Schuenemeyer, Jack E. Tress, John N. Murphy, Karl C. Dean, P. A. Bloom, R. D. Fleming, Syd S. Peng, William G. Humphrey, Glenn L. Cook, Richard F. Link, Robert L. Craft, William A. Stickney, William Alan McKinney

     · 1974

Coded by Alvin Chou