TY  - RPRT
TI  - Geologic map of the Avella quadrangle and part of the Steubenville East Quadrangle, Washington County, Pennsylvania
AU  - S. P. Schweinfurth
PY  - 1976
DO  - 10.3133/i908
UR  - https://pubs.usgs.gov/publication/i908
ID  - i908
ER  -