TY  - RPRT
TI  - Bituminous coal production in the Appalachian basin: past, present, and future
AU  - Robert C. Milici
AU  - Desiree E. Polyak
PY  - 2014
DO  - 10.3133/pp1708d.3
UR  - https://pubs.usgs.gov/publication/pp1708D.3
ID  - pp1708D.3
ER  -