TY - GEN A2 - Harris, Anita G. A2 - Repetski, John E. A2 - Crangle, Robert D. AU - Ryder, Robert T. CY - Denver, Colo. CY - Reston, Va. ET - Version 2.0. L2 - http://pubs.usgs.gov/bul/b1839k/ L2 - http://purl.access.gpo.gov/GPO/LPS75681 LA - English PB - [[USGS Information Services [distributor]., U.S. Dept. of the Interior, U.S. Geological Survey] PP - Denver, Colo. PP - Reston, Va. PY - 2003 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 -