Horizontal trajectories of rotary-drilled holes /

Bibliographic Details

Main Author:	Goodman, Tobias W.
Corporate Author:	United States. Bureau of Mines
Other Authors:	Cervik, Joseph
Format:	Government Document Book
Language:	English
Published:	[Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, [1988]
Series:	Report of investigations (United States. Bureau of Mines) ; 9177.
Subjects:	Boring. Coal mines and mining.
Online Access:	https://purl.fdlp.gov/GPO/LPS97972