@article{446716,
      recid = {446716},
      author = {Ryder, Robert T.},
      title = {Geologic cross section C-C' through the Appalachian basin  from Erie County, north-central Ohio, to the Valley and  Ridge Province, Bedford County, south-central Pennsylvania  /},
      publisher = {U.S. Geological Survey ;},
      address = {[Reston, Va.] :},
      pages = {1 section on 2 sheets :},
      year = {2012},
      note = {Shipping list no.: 2012-0325-P.},
      url = {http://library.usi.edu/record/446716},
}