TY  - BOOK
AU  - Wynn,Jeffrey C.
AU  - Sidder,Gary B.
ED  - United States
TI  - Mineral resource potential of the NB-20-4 Quadrangle, Eastern Guayana Shield, Bolívar State, Venezuela
U1  - 557.3 
PY  - 1991///].
CY  - [Washington]: 
PB  - [United States Government Printing Office], 
KW  - Mines and mineral resources
KW  - Venezuela
KW  - Bolivar (State)
KW  - Geology
N1  - 2 maps in pocket; Conduct map 1: Interpretation of aeromagnetic data for the NB-20-4 Quadrangle, Eastern Bolivar State, Venezuella; Conduct map 2: Geology of  the NB-20-4 Quadrangle, Eastern Bolivar State, Venezuella; Includes bibliographical references (p. 14-16)
ER  -