@article{217415,
      note = {Distributed to depository libraries in microfiche.},
      author = {Franke, O. Lehn.},
      url = {http://library.usi.edu/record/217415},
      title = {Concepts and modeling in ground-water hydrology a  self-paced training course / [microform] :},
      publisher = {U.S. Geological Survey ;},
      recid = {217415},
      pages = {1 v. (various pagings) :},
      address = {Reston, Va. :},
      year = {1991},
}