TY  - RPRT
TI  - Geologic map of the Custer quadrangle, Breckinridge and Hardin Counties, Kentucky
AU  - Dewey Harold Amos
PY  - 1977
DO  - 10.3133/gq1367
UR  - https://pubs.usgs.gov/publication/gq1367
ID  - gq1367
ER  -