Prospecting for gemstones and minerals indal

Sinkankas, John

Prospecting for gemstones and minerals indal - - New York Van Nostrand Reinhold Company 1970 - xviii,397p.







Drilling and boring Shaft sinking Well boring Boring Wells Hydraulic engineering Mining Engineering Tunnels Water supply engineering

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University Library
Cochin University of Science and Technology
Kochi-682 022, Kerala, India