TY  - BOOK
AU  - Savage,Eros M.
TI  - Prospecting for gold and silver / 
PY  - 1934///
CY  - New York : , London : 
PB  - McGraw-Hill book company, inc.
KW  - PLATA
KW  - MINERIA
KW  - ORO
KW  - PROSPECCION
ER  -