@article{,
      recid = {256036},
      title = {Quality assurance guidance document quality assurance  project plan, PM2.5 speciation trends network field  sampling. [microform] :},
      publisher = {U.S. Environmental Protection Agency, Office of Air  Quality Planning and Standards,},
      address = {Research Triangle Park, N.C. :},
      number = {EPA-454/D-00-001},
      pages = {1 v. (various pagings) :},
      year = {2000},
      note = {Cover title.},
      url = {http://library.usi.edu/record/256036},
}