Report of investigations. 6634. Design of drill-hole grid spacings for evaluating low-grade copper deposits; by Richard F. Hewlett.
Publication Title:
Design of drill-hole grid spacings for evaluating low-grade copper deposits; by Richard F. Hewlett.
Display Title:
Report of investigations. 6634. Design of drill-hole grid spacings for evaluating low-grade copper deposits; by Richard F. Hewlett.
Series Title:
Report of investigations.
Corporate Agency Authors:
Mines Bureau and Interior Dept.
Sort Author:
Mines Bureau
Authors:
Hewlett, Richard F.
Author place:
Washington, D.C.
Author zip:
20240
Date:
[1965.]
Publish Date ISO Format:
1965-01-01T00:00:00Z
Publication Start:
19650101
Publication End:
19651231
Corporate/Agency Author:
Mines Bureau
Publication month:
13
Publication year:
1965
SuDoc number:
I 28.23:(nos.)
Description:
[2]+ii+46 p. il. 4°
Notes:
[Based on work done in cooperation with Bear Creek Mining Co., and College of Mines. University of Arisona.]
Notes:
[Based on work done in cooperation with Bear Creek Mining Co., and College of Mines. University of Arisona.] † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa., 15213
Availability:
† Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa., 15213