Grade and tonnage model of Sado epithermal veins
- Reston, VA U.S. Geological Survey 1986
- pp. 155-157 ilus.
- U.S. Geological Survey Bulletin n.1693 .
GENESIS-YACIMIENTO GEOLOGIA ECONOMICA LEY MINERAL MODELOS GENETICOS ORO PROSPECCION MINERA RESERVAS MINERALES YACIMIENTOS EPITERMALES