TY  - RPRT
TI  - Geology of the Ellsworth quadrangle, Pennsylvania
AU  - Henry L. Berryhill
AU  - Stanley P. Schweinfurth
PY  - 1964
DO  - 10.3133/gq333
UR  - https://pubs.usgs.gov/publication/gq333
ID  - gq333
ER  -