Seismic detection of trapped miners using in-mine geophones /

Bibliographic Details

Main Authors:	Powell, James A., Watson, Richard A. (Author)
Corporate Author:	United States. Bureau of Mines
Format:	Government Document Book
Language:	English
Published:	[Washington] : U.S. Dept. of the Interior, Bureau of Mines, [1976]
Series:	Report of investigations (United States. Bureau of Mines) ; 8158.
Subjects:	Mine safety. Mine communication systems.