TY  - RPRT
TI  - Cambrian-lower Middle Ordovician passive carbonate margin, southern Appalachians
AU  - J. Fred Read
AU  - John E. Repetski
PY  - 2012
DO  - 10.1306/13331499m980271
UR  - https://pubs.usgs.gov/publication/70044129
ID  - 70044129
ER  -