553.0973
U58N
               Natural resources - Washington : United States Agency for International Development, 1963.
               v.2 (vii, 355p: ill) - Science, Technology and development .
                United States papers/ the United natins conference on the application of science and technology for the benifit of the less developde areasPartial contents: Minerals and Geodetic control

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                Subjects: Mines and mineral resources; Mining engineering; Natural resources.