Yale, Charles G.
Gold, Silver, Copper, Lead, and Zinc in California and Oregon in 1921 : Mines Report. - Washington, D.C. Government Printing Office 1922 - pp. 167-206
Impreso En biblioteca 2 ejemplares.
Ingles
MINERIA
Gold, Silver, Copper, Lead, and Zinc in California and Oregon in 1921 : Mines Report. - Washington, D.C. Government Printing Office 1922 - pp. 167-206
Impreso En biblioteca 2 ejemplares.
Ingles
MINERIA