TY  - RPRT
TI  - Geology and fluorspar deposits of the Levias-Keystone and Dike-Eaton areas, Crittenden County, Kentucky
AU  - Robert Denny Trace
PY  - 1962
DO  - 10.3133/b1122e
UR  - https://pubs.usgs.gov/publication/b1122E
ID  - b1122E
ER  -