TY  - BOOK
AU  - BOERICKE, WILLIAM F.
TI  - OPERATING & PROSPECTING SMALL GOLD PLACERS
T2  - 0
U1  - 549.23 
PY  - 0000///199
CY  - NEW YORK-U.S.A.
PB  - JOHN WILEY Y SONS
KW  - CIENCIAS PURAS
N1  - GOLD-OPERATING
ER  -