TY  - RPRT
TI  - The lead-zinc veins of the chilete mining district in northern Peru
AU  - F.S. Simmons
PY  - 1955
DO  - 10.2113/gsecongeo.50.4.399
UR  - https://pubs.usgs.gov/publication/70207317
ID  - 70207317
ER  -