TY  - RPRT
TI  - Maps showing geology, oil and gas fields and geologic provinces of the South America region
AU  - Christopher J. Schenk
AU  - Roland J. Viger
AU  - Christopher P. Anderson
PY  - 2000
DO  - 10.3133/ofr97470d
UR  - https://pubs.usgs.gov/publication/ofr97470D
ID  - ofr97470D
ER  -