Base-metal deposits of the Cordillera Negra, Departamento de Ancash, Peru /
Bodenlos, Alfred J.
Straczek, John A.
Perú.Ministerio del Fomento.
United States.Interdepartmental Committee on Scientific and Cultural Cooperation.cn
Geological Survey (U.S.)cn
Washington, [D.C.] : U.S. G.P.O.,
1957.
Nine folded col. maps in pocket.
Maps in Spanish and English.
Bibliography: p. 159-160.
Mines and mineral resources