A rock drillability index
By: by C. G. White.
Series: Quarterly of the Colorado School of Mines, v. 64, no. 2; Quarterly of the Colorado School of Mines ;; v. 64, no. 2.
Publisher: Colorado School of Mines
Published: 1969
Place of publication: Golden
Language: eng
Number of pages: 92
Subjects: Rocks -- Testing.; Boring.
Notes: Bibliography: p. 91-92.