Mineral resource potential of the NB-20-4 Quadrangle, Eastern Guayana Shield, Bolívar State, Venezuela /

Bibliographic Details
Main Author: Wynn, Jeffrey C.
Corporate Author: Geological Survey (U.S.)
Other Authors: Sidder, Gary B.
Format: Government Document Book
Language:English
Published: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey : Denver, CO : 1991.
Series:U.S. Geological Survey bulletin ; 1960.
Subjects: