@article{6210,
      recid = {6210},
      author = {Bristol, Hubert Masters.},
      title = {Structure of the top of the Karnak limestone member (Ste.  Genevieve) in Illinois /},
      publisher = {Illinois State Geological Survey,},
      address = {Urbana :},
      pages = {6 p. :},
      year = {1976},
      url = {http://library.usi.edu/record/6210},
}