@article{,
      note = {Cover title.},
      author = {Morrison, Cristina,},
      url = {http://library.usi.edu/record/234115},
      title = {POTW sludge sampling and analysis guidance document  [microform].},
      publisher = {U.S. Environmental Protection Agency, Office of Water,},
      number = {EPA 833-B-89-100},
      recid = {234115},
      pages = {1 v. (various pagings) :},
      address = {[Washington, D.C.] :},
      year = {1989},
}