@article{,
      recid = {250987},
      title = {Improving air quality with economic incentive programs  [microform] /},
      publisher = {U.S. Environmental Protection Agency, Office of Air and  Radiation, Office of Air Quality Planning and Standards,},
      address = {Research Triangle Park, N.C. :},
      number = {EPA-452/R-01-001},
      pages = {iv, 260 p. :},
      year = {2001},
      note = {"January 2001."},
      url = {http://library.usi.edu/record/250987},
}