TY  - RPRT
TI  - Geochemical analyses and summaries of Mississippian and Pennsylvanian sandstone from Kentucky
AU  - Jon J. Connor
PY  - 1981
DO  - 10.3133/ofr811098
UR  - https://pubs.usgs.gov/publication/ofr811098
ID  - ofr811098
ER  -