TY  - BOOK
AU  - West,Robert Cooper
TI  - Colonial placer mining in Colombia
U1  - 549.86 
PY  - 1952///
CY  - Baton Rauge
PB  - Louisiana State University press, 
KW  - Minero
KW  - Minas
KW  - Mineralogía
KW  - Mineria
KW  - Colombia
ER  -