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Geology and ore deposits of the Itabira district, Minas Gerais, Brazil
Departamento Nacional da Produção Mineral.
v, 110 pages : illustrations, maps (both part color) ; 29 cm.
by John Van N. Dorr, 2d and Aluizio Licinio de Miranda Barbosa.
"Prepared in cooperation with the Departamento Nacional da Produção Mineral of Brazil."
Part of illustrative matter in portfolio.
Geology and mineral resources of parts of Minas Gerais, Brazil
Geological Survey professional paper ; 341-C