@article{,
      note = {Cover title.},
      url = {http://library.usi.edu/record/191603},
      title = {Air quality trends [microform].},
      publisher = {U.S. Environmental Protection Agency, Office of Air  Quality Planning and Standards,},
      number = {EPA-454/F-95-003},
      recid = {191603},
      pages = {13 p. :},
      address = {Research Triangle Park, NC :},
      year = {1995},
}