Rivera Guillén, Jorge Nelson Huarón - Lima Editora Perú 1980 - pp. 343-352 - t.4, v.1 . Subjects--Topical Terms: COBREGEOLOGIA ECONOMICAYACIMIENTOS FILONIANOS Subjects--Geographic Terms: PASCO Subjects--Index Terms: HUARON, YAC. Universal Decimal Class. No.: P/622(85)/S19|49