TY  - RPRT
TI  - Geology, geochemistry, and mineral resources of the upper Caura River area, Bolivar State, Venezuela
AU  - G.B. Sidder
AU  - Felix Martinez
PY  - 1990
DO  - 10.3133/ofr90231
UR  - https://pubs.usgs.gov/publication/ofr90231
ID  - ofr90231
ER  -