TY  - RPRT
TI  - Geologic map of parts of the Alton and Derby quadrangles, Meade and Breckinridge Counties, Kentucky
AU  - Dewey Harold Amos
PY  - 1970
DO  - 10.3133/gq845
UR  - https://pubs.usgs.gov/publication/gq845
ID  - gq845
ER  -