@article{12763,
      author = {Masters, John M.},
      url = {http://library.usi.edu/record/12763},
      title = {Sand and gravel and peat resources in northeastern  Illinois /},
      publisher = {Illinois State Geological Survey,},
      recid = {12763},
      pages = {11 p. :},
      address = {Urbana :},
      year = {1978},
}