TY  - RPRT
TI  - Sediment-hosted zinc-lead deposits of the world— Database and grade and tonnage models
AU  - Donald A. Singer
AU  - Vladimir I. Berger
AU  - Barry C. Moring
PY  - 2009
DO  - 10.3133/ofr20091252
UR  - https://pubs.usgs.gov/publication/ofr20091252
ID  - ofr20091252
ER  -