TY  - RPRT
TI  - Mineral deposits of the territory of Amapa, Brazil - alluvial gold, cassiterite, and columbite-tantalite in the Ampari River region
AU  - Montis Ruhl Klepper
AU  - Victor Dequech
PY  - 1967
DO  - 10.3133/ofr67130
UR  - https://pubs.usgs.gov/publication/ofr67130
ID  - ofr67130
ER  -