TY  - RPRT
TI  - The mineral resources of the Sierra Nevada de Santa Marta, Columbia (Zone I)
AU  - Charles McFarland Tschanz
AU  - Andres Jimeno V.
AU  - Jaime B. Cruz
PY  - 1970
DO  - 10.3133/ofr70329
UR  - https://pubs.usgs.gov/publication/ofr70329
ID  - ofr70329
ER  -