@article{155009,
      author = {Treworgy, Colin G. and Coats, Gayla K. and Bargh, Margaret  H.},
      url = {http://library.usi.edu/record/155009},
      title = {Availability of coal resources for mining in Illinois :  Middletown Quadrangle, Central Illinois /},
      publisher = {Dept. of Energy and Natural Resources, Illinois State  Geological Survey,},
      recid = {155009},
      pages = {48 p. :},
      address = {Champaign, Ill. :},
      year = {1994},
}