TY  - SER
ED  - Gold Mining Association of America
ED  - Mining Association of California
ED  - California Hydraulic Mining Association
TI  - Mining and Industrial News
PY  - 1949///-
CY  - San Francisco
PB  - Gold Mining Association of America, Mining Association of California, California Hydraulic Mining Association
KW  - Industria
KW  - Minería
KW  - Estados Unidos
ER  -