@article{662018,
      recid = {662018},
      title = {Illinois Waterway navigation charts : Grafton, IL to Lake  Michigan at Chicago and Calumet harbors /},
      pages = {1 atlas ([178] pages) :},
      note = {Includes waterway profile and map, index maps and tables  of barge facilities, vertical clearances for bridges,  submerged utility crossings, water level gauges, and water  distance.},
      url = {http://library.usi.edu/record/662018},
}