TY  - BOOK
T1  - Mineral occurrences of the Guiana Shield, Venezuela
DA  - 1990.
CY  - [Denver, CO] :
AU  - Sidder, Gary B.
VL  - 90-16
CN  - I 19.76:
PB  - U.S. Geological Survey,
PP  - [Denver, CO] :
PY  - 1990.
N1  - Cover title.
N1  - One map on folded leaf in pocket.
ID  - 263347
KW  - Mines and mineral resources
TI  - Mineral occurrences of the Guiana Shield, Venezuela
ER  -