@article{263022,
      author = {Mills, Patrick C. and Halford, Keith J. and Cobb, R. P.},
      url = {http://library.usi.edu/record/263022},
      title = {Delineation of the Troy Bedrock Valley and  particle-tracking analysis of ground-water flow underlying  Belvidere, Illinois /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {263022},
      pages = {v, 46 p. :},
      address = {Urbana, Ill. :},
      year = {2002},
}