TY  - RPRT
TI  - Subsurface correlations and sequence stratigraphic interpretations of lower Silurian strata in the Appalachian Basin of northeast Ohio, southwest New York, and northwest Pennsylvania
AU  - Robert D. Hettinger
PY  - 2001
DO  - 10.3133/i2741
UR  - https://pubs.usgs.gov/publication/i2741
ID  - i2741
ER  -