TY - RPRT TI - Geology and mineral deposits of the San Cristobal district, Villa Martin province, Potosi, Bolivia AU - Herbert S. Jacobson AU - Carlos Murillo AU - Lorgio Ruiz AU - Oscar Tapia AU - Hugo Zapata AU - Hugo Alarcon AU - Edgar Delgadillo AU - Carlos Velasco PY - 1969 DO - 10.3133/b1273 UR - https://pubs.usgs.gov/publication/b1273 ID - b1273 ER -