TY  - RPRT
TI  - Geologic map of the Berlin quadrangle, Bracken and Pendleton Counties, Kentucky
AU  - Stanley J. Luft
PY  - 1975
DO  - 10.3133/gq1256
UR  - https://pubs.usgs.gov/publication/gq1256
ID  - gq1256
ER  -