@article{,
      note = {Cover title.},
      author = {Musick, David.},
      url = {http://library.usi.edu/record/222832},
      title = {Quality assurance procedures index to key provisions,  proposed requirements for designation of reference and  equivalency methods for PM2.5 and ambient air quality  surveillance for particulate matter proposed rule /  [microform] :},
      publisher = {U.S. Environmental Protection Agency, Office of Air  Quality Planning and Standards, Monitoring and Quality  Assurance Group, Emissions, Monitoring, and Analysis  Division,},
      number = {EPA-454/R-97-002 a},
      recid = {222832},
      pages = {vii, 30 leaves ;},
      address = {[Research Triangle Park, N.C.] :},
      year = {1997},
}