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Effect of Coal Mine Health and Safety Act of 1969 on respirable dust concentrations in selected underground coal mines
Bureau of Mines procedure for evaluating quartz content of respirable coal mine dust
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Published Year
1970-1979 (2)
Subject
Coal mines and mining--Dust control (2) *
Mine dusts (2)
Coal mines and mining--Law and legislation (1)
Mining engineering--Dust control (1)
Author
Jacobson, M. (2) *
Goldberg, Samuel A. (1)
Hughes, Mona E., (1)
Parobeck, Paul S. (1)
