Introductory mining engineering /
Hartman, Howard L.
Introductory mining engineering / Howard L. Hartman. - New York : John Wiley & Sons, 1987. - 633 p.
0471820040
Mining engineering
Introductory mining engineering / Howard L. Hartman. - New York : John Wiley & Sons, 1987. - 633 p.
0471820040
Mining engineering