TY  - RPRT
TI  - Lithostratigraphy of Upper Ordovician strata exposed in Kentucky, with a section on biostratigraphy
AU  - Gordon Whitney Weir
AU  - Warren Lee Peterson
AU  - W. C. Swadley
AU  - John Pojeta
PY  - 1984
DO  - 10.3133/pp1151e
UR  - https://pubs.usgs.gov/publication/pp1151E
ID  - pp1151E
ER  -