@article{200779,
      note = {Distributed to depository libraries in microfiche.},
      author = {Kalkhoff, Stephen J. and Kuzniar, Ronald L.},
      url = {http://library.usi.edu/record/200779},
      title = {Hydrologic data for the Big Spring basin, Clayton County,  Iowa water year 1989 / [microform] :},
      publisher = {U.S. Geological Survey ;},
      recid = {200779},
      pages = {vi, 66 p. :},
      address = {Iowa City, Iowa :},
      year = {1991},
}