TY  - RPRT
TI  - The Shawangunk Formation (Upper Ordovician(?) to Middle Silurian) in eastern Pennsylvania
AU  - Jack Burton Epstein
AU  - Anita G. Epstein
PY  - 1972
DO  - 10.3133/pp744
UR  - https://pubs.usgs.gov/publication/pp744
ID  - pp744
ER  -