TY  - RPRT
TI  - Characteristics of the Mississippian-Pennsylvanian boundary and associated coal-bearing rocks in the southern Appalachians
AU  - K. J. Englund
AU  - W.H. Gillespie
AU  - C. B. Cecil
AU  - J. F. Windolph
AU  - T. J. Crawford
PY  - 1985
DO  - 10.3133/ofr85577
UR  - https://pubs.usgs.gov/publication/ofr85577
ID  - ofr85577
ER  -