TY  - RPRT
TI  - Geologic map of the Mount Carmel quadrangle, Columbia, Northumberland, and Schuylkill Counties, Pennsylvania
AU  - Harold H. Arndt
PY  - 1971
DO  - 10.3133/gq919
UR  - https://pubs.usgs.gov/publication/gq919
ID  - gq919
ER  -