Horizontal trajectories of rotary-drilled holes
By: by Tobias W. Goodman and Joseph Cervik.
Contributors: Cervik, Joseph.
Series: Report of investigations ;; 9177; Report of investigations (United States. Bureau of Mines) ;; 9177.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1988
Place of publication: Pgh. [i.e. Pittsburgh] Pa
Language: eng
Number of pages: 11
Subjects: Boring.
Notes: Bibliography: p. 11.