TY  - RPRT
TI  - Geologic mapping of Kentucky: A history and evaluation of the Kentucky Geological Survey--U.S. Geological Survey Mapping Program, 1960-1978
AU  - Earle Rupert Cressman
AU  - Martin C. Noger
PY  - 1981
DO  - 10.3133/cir801
UR  - https://pubs.usgs.gov/publication/cir801
ID  - cir801
ER  -