TY  - RPRT
TI  - Geology of quadrangles H-12, H-13, and parts of I-12 and I-13, (zone III) in northeastern Santander Department, Colombia
AU  - Dwight Edward Ward
AU  - Richard Goldsmith
AU  - Jaime B. Cruz
AU  - Hernan A. Restrepo
PY  - 1974
DO  - 10.3133/ofr74258
UR  - https://pubs.usgs.gov/publication/ofr74258
ID  - ofr74258
ER  -