@article{145485,
      note = {One folded. col. map in pocket.},
      author = {Ryder, Robert T. and Harris, Anita G. and Repetski, John  E.},
      url = {http://library.usi.edu/record/145485},
      title = {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 /},
      publisher = {United States Government Printing Office ;},
      recid = {145485},
      pages = {iii, 32 p. :},
      address = {[Washington] :},
      year = {1992},
}