@article{200615,
      note = {Chiefly tables.},
      author = {Bowman, Phillip R.},
      url = {http://library.usi.edu/record/200615},
      title = {Hydrologic data for a study of pre-Illinoian glacial till  in Linn County, Iowa, water year 1990 [microform] /},
      publisher = {U.S. Geological Survey ;},
      recid = {200615},
      pages = {iv, 70 p. :},
      address = {Iowa City, Iowa :},
      year = {1991},
}