@article{263032,
      author = {Kay, Robert T. and Bayless, E. Randall and Solak, Robert  A.},
      url = {http://library.usi.edu/record/263032},
      title = {Use of isotopes to identify sources of ground water,  estimate ground-water-flow rates, and assess aquifer  vulnerability in the Calumet Region of northwestern Indiana  and northeastern Illinois /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {263032},
      pages = {v, 60 p. :},
      address = {Indianapolis, Ind. :},
      year = {2002},
}