Sideboard device for improved face ventilation in coal mines /

Bibliographic Details
Main Author:	Divers, Edward F.
Corporate Author:	United States. Bureau of Mines
Other Authors:	LaScola, John C., Kissell, Fred N.
Format:	Government Document Book
Language:	English
Published:	[Washington] : Dept. of the Interior, Bureau of Mines, 1979.
Series:	Bureau of Mines technical progress report ; 108.
Subjects:	Mine ventilation > Equipment and supplies. Coal mines and mining.

Evans: US Documents (Annex 5th floor)