@article{20210,
      note = {Sponser: Illinois State Geological Survey.},
      url = {http://library.usi.edu/record/20210},
      title = {43d annual Tri-state Geological Field Conference, October  5-7, 1979 : Geology of Western Illinois.. Tri-State  Geological Field Conference},
      publisher = {Illinois State Geological Survey,},
      recid = {20210},
      pages = {90 p. :},
      address = {Urbana, Ill. :},
      year = {1979},
}