TY  - RPRT
TI  - Geologic map of parts of the San Gil and Malaga quadrangles (I-12 and I-13), Colombia
AU  - D.E. Ward
AU  - Richard Goldsmith
AU  - J.B. Cruz
AU  - N.I. Tellez
AU  - L.C. Jaramillo
PY  - 1977
DO  - 10.3133/i1007
UR  - https://pubs.usgs.gov/publication/i1007
ID  - i1007
ER  -