@article{,
      recid = {233939},
      title = {National emissions standards for hazardous air pollutants  for source categories oil and natural gas production and  natural gas transmission and storage - background  information for proposed standards / [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-453/R-94-079 a},
      pages = {1 v. (various pagings) :},
      year = {1997},
      note = {Shipping list no.: 98-0383-M.},
      url = {http://library.usi.edu/record/233939},
}