TY - RPRT TI - Bedrock geology and geochemistry of the Anacoco Sur II area, Bolivar State, Venezuela AU - W. C. Day AU - L.F. Martinez AU - Enot Quintana PY - 1989 DO - 10.3133/ofr89305 UR - https://pubs.usgs.gov/publication/ofr89305 ID - ofr89305 ER -