TY  - SER
AU  - Loring, W. J.
TI  - Power on mines
T2  - The minig magazine ; 
PY  - 1913///
CY  - San Francisco-XXU : 
PB  - The Daimler Company, 
KW  - ECONOMIA MINERA
KW  - PRODUCCION MINERA
KW  - MINERIA
ER  -