TY  - RPRT
TI  - Evidence for the correlation of the upper part of the Llewellyn Formation (Pennsylvania Anthracite region), with the Monongahela Formation
AU  - J.R. Eggleston
AU  - C. Wnuk
AU  - W.E. Edmunds
PY  - 1996
UR  - https://pubs.usgs.gov/publication/70017834
ID  - 70017834
ER  -