(1992). Maps showing mineral resource assessment for vein and replacement deposits of gold, silver, copper, lead, zinc, manganese, and tungsten in the Butte 1 ̊x 2 ̊quadrangle, Montana. U.S. Geological Survey.
Chicago-Zitierstil (17. Ausg.)Maps Showing Mineral Resource Assessment for Vein and Replacement Deposits of Gold, Silver, Copper, Lead, Zinc, Manganese, and Tungsten in the Butte 1 ̊x 2 ̊quadrangle, Montana. Reston, VA: U.S. Geological Survey, 1992.
MLA-Zitierstil (9. Ausg.)Maps Showing Mineral Resource Assessment for Vein and Replacement Deposits of Gold, Silver, Copper, Lead, Zinc, Manganese, and Tungsten in the Butte 1 ̊x 2 ̊quadrangle, Montana. U.S. Geological Survey, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.