@article{10688,
      note = {"EPA-600/977-017."},
      author = {Holt, Elmer C.},
      url = {http://library.usi.edu/record/10688},
      title = {Coal cleaning with scrubbing for sulfur control : an  engineering economic summary /},
      publisher = {Environmental Protection Agency, Office of Research and  Development, Office of Energy, Minerals and Industry ;},
      recid = {10688},
      pages = {16 p. :},
      address = {Washington :},
      year = {1977},
}