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| Utgitt
| New York : Pergamon Press , c1982
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| Omfang
| 432 s. : kart, fig., tab., diagr.
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| Opplysninger
| "This seminar is one of a series of meetings on mineral development and related topics which the United Nations has been organizing ...". - Har bibliografi.
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| Emner
| |
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| ISBN
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