TY  - BOOK
AU  - Yale,Charles G.
TI  - Gold, Silver, Copper, Lead, and Zinc in California and Oregon in 1921 : : Mines Report
PY  - 1922///
CY  - Washington, D.C.
PB  - Government Printing Office
KW  - MINERIA
N1  - Impreso; En biblioteca 2 ejemplares
ER  -