TY  - RPRT
TI  - Geologic map of the Wallins Creek quadrangle, Harlan and Bell Counties, Kentucky
AU  - A.J. Froelich
PY  - 1972
DO  - 10.3133/gq1016
UR  - https://pubs.usgs.gov/publication/gq1016
ID  - gq1016
ER  -