TY - BOOK T1 - Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia / DA - 1992. CY - [Washington] : CY - Denver, CO : AU - Ryder, Robert T. AU - Harris, Anita G. AU - Repetski, John E. VL - ch. K VL - 1839-K CN - QE75 CN - QE75 PB - United States Government Printing Office ; PB - For sale by Book and Open-File Report Sales, U.S. Geological Survey, PP - [Washington] : PP - Denver, CO : PY - 1992. N1 - One folded. col. map in pocket. ID - 145485 KW - Geology, Stratigraphic KW - Geology, Stratigraphic KW - Geology TI - Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia / ER -