@book {, title = {Geolog{\'\i}a de la Cordillera Occidental y Altiplano al oeste del Lago Titicaca-sur del Per{\'u}}, volume = {Bolet{\'\i}n No}, year = {1993}, publisher = {INGEMMET, Rep{\'u}blica del Per{\'u}, Sector Energ{\'\i}a y Metal{\'u}rgico}, organization = {INGEMMET, Rep{\'u}blica del Per{\'u}, Sector Energ{\'\i}a y Metal{\'u}rgico}, type = {Geological}, address = {Lima}, keywords = {ilave paper map topographic IGM IGN}, author = {Palacios, O. and J. de la Cruz and N. de la Cruz and B. A. Klinck and R. A. Allison and M. P. Hawkins} }