International mineral economics : mineral exploration, mine valuation, mineral markets, international mineral policies
W. R. Gocht, H. Zantop, R. G. Eggert
Bok Språk ikke angitt 1988
| Utgitt | Berlin : Springer , c1988
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| Omfang | XIV, 271 s. : ill.
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| Emner | |
| ISBN | 0387187499. - 3540187499
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