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Mineral resources of Colombia (other than petroleum)
Quentin Dreyer Singewald
1950, Bulletin 964-B
The following report summarizes data acquired during 1942-45, in Colombia, by geologists and engineers of the Foreign Economic Administration, with whom the United States Geological Survey cooperated. Twenty-nine mineral commodities are considered, but the data for five of them are scant because they were of no interest to FEA personnel....