@article{198870,
      note = {Distributed to depository libraries in microfiche.},
      author = {Hsieh, P. A. and Freckleton, John R.},
      url = {http://library.usi.edu/record/198870},
      title = {Documentation of a computer program to simulate  horizontal-flow barriers using the U.S. Geological Survey's  modular three-dimensional finite-difference ground-water  flow model [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {198870},
      pages = {vi, 32 p. :},
      address = {Sacramento, Calif. :},
      year = {1993},
}