TY  - RPRT
TI  - Geologic map of the south half of the Shamokin Quadrangle, Northumberland and Columbia counties, Pennsylvania
AU  - H. H. Arndt
AU  - G.H. Wood
AU  - R.F. Schryver
PY  - 1973
DO  - 10.3133/i734
UR  - https://pubs.usgs.gov/publication/i734
ID  - i734
ER  -