TY  - RPRT
TI  - Structure contour map of the Avella and part of the Steubenville East quadrangles, Washington County, Pennsylvania
AU  - Stanley P. Schweinfurth
PY  - 1972
DO  - 10.3133/ofr72341
UR  - https://pubs.usgs.gov/publication/ofr72341
ID  - ofr72341
ER  -