Contributions to Brazilian geology : Nonferrous metals.

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Bibliographic Details
Main Authors: Johnson, Robert F., 1916- (Author), Robertson, Jacques F. (Jacques Francis), 1920- (Author)
Corporate Author: Geological Survey (U.S.)
Format: Government Document Book
Language:English
Published: Washington : U.S. Govt. Print. Off., 1960-63.
Series:Geological Survey bulletin ; 1110.
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