Revista - Dirección Nacional de Geología y Minería.

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Item Link Original Source
Limited (search only)   v.6-7 no.20-25 1970-1971 University of Michigan
Limited (search only)   v.8 no.30-31 1972 University of Michigan
Limited (search only)   no.20-25 (1970-71) University of California
Limited (search only)   no.26-29 1972 University of Michigan