TY  - RPRT
TI  - Data base for metallic mineral districts and mines of the northern Black Hills, South Dakota and Wyoming, Part A - Program documentation
AU  - Anna Burack Wilson
AU  - Ed DeWitt
PY  - 1990
DO  - 10.3133/ofr90424a
UR  - https://pubs.usgs.gov/publication/ofr90424A
ID  - ofr90424A
ER  -