TY  - RPRT
TI  - Coal and petroleum resources in the Appalachian basin: index maps of included studies
AU  - Leslie F. Ruppert
AU  - Michael H. Trippi
AU  - Scott A. Kinney
PY  - 2014
DO  - 10.3133/pp1708b.1
UR  - https://pubs.usgs.gov/publication/pp1708B.1
ID  - pp1708B.1
ER  -