@article{33897,
      recid = {33897},
      author = {Stevenson, D. L.},
      title = {Geologic structure of the base of the New Albany shale  group in Illinois /},
      publisher = {Illinois State Geological Survey,},
      address = {Champaign, IL :},
      pages = {2 p. :},
      year = {1981},
      note = {Extract from: The New Albany shale group of Illinois /  Robert H. Cluff, Mark L. Reinbold, Jerry A. Lineback.},
      url = {http://library.usi.edu/record/33897},
}