@article{30887,
      author = {Leonard, A. Byron},
      url = {http://library.usi.edu/record/30887},
      title = {Wisconsinan molluscan faunas of the Illinois Valley region  /},
      publisher = {Illinois State Geological Survey,},
      recid = {30887},
      pages = {32 p. :},
      address = {Urbana:},
      year = {1960},
}