Courtney, Welby G.

Deposition of respirable coal dust in an airway / by Welby G. Courtney, Lung Cheng, Edward F. Divers - Washington : U. S. Dept. of the Interior, Bureau of Mines, 1986 - 10 p. : ill. ; 29 cm. - United States Bureau of Mines. Report of investigations 9041 .

Bibliography: p. 10

Coal mines and mining--Dust control.
Mine ventilation.

USBM ri-9041