TY  - RPRT
TI  - Palynology of late Middle Pennsylvanian coal beds in the Appalachian Basin
AU  - C.F. Eble
PY  - 2002
DO  - 10.1016/s0166-5162(02)00114-3
UR  - https://pubs.usgs.gov/publication/70024666
ID  - 70024666
ER  -