Methods of determining the orientations of bedrock fracture systems in southwestern Pennsylvania and northern West Virginia /

Bibliographic Details
Main Authors:	Bench, Bernard M., Diamond, W. P. (William P.) (Author)
Corporate Author:	United States. Bureau of Mines
Other Authors:	McCulloch, C. M. (Charles M.)
Format:	Government Document Book
Language:	English
Published:	[Washington] : Dept. of the Interior, Bureau of Mines, 1977.
Series:	Report of investigations (United States. Bureau of Mines) ; 8217.
Subjects:	Mining geology. Coal mines and mining > Pennsylvania. Coal mines and mining > West Virginia.

Evans: US Documents (Annex 5th floor)