Principles of mining : valuation, organization and administration; copper, gold, lead, silver, tin and zinc
by Herbert C. Hoover
Bok Engelsk 1909 Herbert Clark Hoover
Utgitt | New York : McGraw-Hill , 1909
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Omfang | VII, 199 s. : ill.
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Emner |
Utgitt | New York : McGraw-Hill , 1909
|
---|---|
Omfang | VII, 199 s. : ill.
|
Emner |