References
- Cecala , A. B. , Klinowski , G. W. and Thimons , E. D. 1993 . Reducing Respirable Dust Concentrations at Mineral Processing Facilities Using Total Mill Ventilation System. BuMines RI 9469 Pittsburgh, PA : Bureau of Mines .
- Williams , K. L. and Timko , R. J. 1984 . Performance Evaluation of a Real-Time Aerosol Monitor. BuMines IC 8968 Pittsburgh, PA : Bureau of Mines .
- Watts , W.F. Jr. and Parker , D. R. 1987 . Respirable Dust Levels in Coal, Metal, and Nonmetal Mines. BuMines IC 9125 Minneapolis, MN : Bureau of Mines .
- Cecala , A. B. and Thimons , E. D. 1986 . Impact of Background Sources on Dust Exposure of Bag Machine Operator. BuMines IC 9089 Pittsburgh, PA : Bureau of Mines .
- Cecala , A. B. and Thimons , E. D. 1992 . Some Factors Impacting Bag Operator's Dust Exposures . Pit & Quarry Magazine , 85 ( 5 ) : 38 – 40 .