@article{68483,
      recid = {68483},
      author = {Waldschmidt, W. A.},
      title = {Petrographic analysis of O'Hara cores from Wayne County,  Illinois and Gibson County, Indiana /},
      publisher = {Dowell Incorporated,},
      address = {Tulsa, Okla. :},
      pages = {[10] l.},
      year = {1957},
      url = {http://library.usi.edu/record/68483},
}