TY  - RPRT
TI  - Stratigraphic and interregional changes in Pennsylvanian coal-swamp vegetation: Environmental inferences
AU  - T.L. Phillips
AU  - R.A. Peppers
AU  - William A. DiMichele
PY  - 1985
DO  - 10.1016/0166-5162(85)90010-2
UR  - https://pubs.usgs.gov/publication/70012906
ID  - 70012906
ER  -