Organiscak, John A.
Sources and characteristics of quartz dust in coal mines / by J.A. Organiscak, S.J. Page, and R.A. Jankowski. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1990. - ii, 21 p. : ill. - Bureau of Mines information circular . - Information ciruclar (United States. Bureau of Mines) .
90002409
Quartz dust.
Coal mines and mining--Dust control.
Sources and characteristics of quartz dust in coal mines / by J.A. Organiscak, S.J. Page, and R.A. Jankowski. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1990. - ii, 21 p. : ill. - Bureau of Mines information circular . - Information ciruclar (United States. Bureau of Mines) .
90002409
Quartz dust.
Coal mines and mining--Dust control.