Arizona Mining Scams and Unassayable Ore Projects of the Late 20th Century by W. Scott Donaldson, dated December 2002. An open File Report 02-20 Arizona Department of Mines and Mineral Resources.

Arizona Mining Scams and Unassayable Ore Projects of the Late 20th Century by W. Scott Donaldson, dated December 2002. An open File Report 02-20 Arizona Department of Mines and Mineral Resources.