@article{196902,
      note = {Title from online title screen.},
      url = {http://library.usi.edu/record/196902},
      title = {National Water-Quality Assessment Program [electronic  resource].},
      publisher = {U.S. Geological Survey,},
      recid = {196902},
      address = {[Reston, Va.] :},
      year = {1997},
}