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Effect of Coal Mine Health and Safety Act of 1969 on respirable dust concentrations in selected underground coal mines
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Published Year
1970-1979 (1) *
Subject
Coal mines and mining--Dust control (1)
Coal mines and mining--Law and legislation (1)
Mine dusts (1)
Mining engineering--Dust control (1) *
Author
Hughes, Mona E., (1)
Jacobson, M. (1)
Parobeck, Paul S. (1)
