TY - RPRT TI - Assessment of Appalachian basin oil and gas resources: Devonian shale— Middle and Upper Paleozoic Total Petroleum System AU - Robert C. Milici AU - Christopher S. Swezey PY - 2006 DO - 10.3133/ofr20061237 UR - https://pubs.usgs.gov/publication/ofr20061237 ID - ofr20061237 ER -