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| Preview | Issue Date | Title | Author(s) |
|---|---|---|---|
 | 1986-03 | Report on mining development plan of Iscaycruz (Oyon) area | Japan International Cooperation Agency |
 | 1986-03 | Report on mining development plan of Iscaycruz (Oyon) area: report of metallurgical investigation | Japan International Cooperation Agency |
 | 1986 | Geología y minería en la Cordillera Oriental en el sur del Perú Dpto. Puno | Rivera Mantilla, Hugo |
