TY  - RPRT
TI  - Geologic map of the Oak Level quadrangle, Western Kentucky
AU  - Wilds W. Olive
AU  - R. W. Davis
PY  - 1968
DO  - 10.3133/gq744
UR  - https://pubs.usgs.gov/publication/gq744
ID  - gq744
ER  -