Geologic structures in coal mine roof /

Bibliographic Details
Main Author:	Moebs, Noel N.
Other Authors:	Ellenberger, John L.
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1982.
Series:	Report of investigations (United States. Bureau of Mines) ; 8620.
Subjects:	Coal mines and mining > Appalachian Region > Safety measures. Coal > Geology > Appalachian Region. Rock bursts.