Greer, Paolo, 1987, Gold farms of Peru, in Burton, P.J., and Berg, H.C., comps., Placer mining: Yesterday, today, tomorrow: Proceedings of the eighth annual Alaska conference on placer mining-1986: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 18D, p. 23-40. https://doi.org/10.14509/707
This publication is part of a larger work. Please see MP 18 for more information.
Gold; Historic Resources; Mining Methods; Placer