TY  - RPRT
TI  - Preliminary map of gold provinces in the conterminous United States
AU  - Edwin Wilson Tooker
AU  - Maureen G. Johnson
PY  - 1980
DO  - 10.3133/ofr79576s
UR  - https://pubs.usgs.gov/publication/ofr79576S
ID  - ofr79576S
ER  -