TY  - RPRT
TI  - Mineral resources of the southern half of Zone III Santander, Norte de Santander and Boyaca, Colombia
AU  - Dwight Edward Ward
AU  - Richard Goldsmith
AU  - Bruna B. Cruz
AU  - Jaime Restrepo
AU  - A. Hernan
PY  - 1970
DO  - 10.3133/ofr70359
UR  - https://pubs.usgs.gov/publication/ofr70359
ID  - ofr70359
ER  -