TY  - RPRT
TI  - Ore deposits in rocks of Paleozoic and Tertiary age of the northern Black Hills, South Dakota
AU  - Lewis H. Shapiro
AU  - John Paul Gries
PY  - 1970
DO  - 10.3133/ofr70300
UR  - https://pubs.usgs.gov/publication/ofr70300
ID  - ofr70300
ER  -