Determining the source of longwall gob gas : Lower Kittanning Coalbed, Cambria County, PA /

Bibliographic Details
Main Author:	Diamond, W. P. (William P.)
Corporate Author:	United States. Bureau of Mines
Other Authors:	Ulery, J. P. (James P.), Kravits, S. J. (Stephen J.)
Format:	Government Document Microform Book
Language:	English
Published:	Washington, D.C. (810 7th St., N.W., MS#9800, Washington 20241-0001) : U.S. Dept. of the Interior, Bureau of Mines, [1992]
Series:	Report of investigations (United States. Bureau of Mines) ; 9430.
Subjects:	Firedamp > Pennsylvania > Cambria County. Coal mine waste > Pennsylvania > Cambria County. Longwall mining > Pennsylvania > Cambria County. Mine ventilation.