TY  - RPRT
TI  - Petroleum source rock potential of the Upper Ordovician black shale sequence, northern Appalachian basin
AU  - L.G. Wallace
AU  - J.B. Roen
PY  - 1989
DO  - 10.3133/ofr89488
UR  - https://pubs.usgs.gov/publication/ofr89488
ID  - ofr89488
ER  -