@article{199602,
      note = {Cover title.},
      author = {Barker, Charles E.},
      url = {http://library.usi.edu/record/199602},
      title = {A Field and laboratory procedure for desorbing coal gases  [microform] /},
      publisher = {U.S. Dept. of the Interior, Geological Survey :},
      recid = {199602},
      pages = {i, 14 leaves :},
      address = {[Denver, CO] :},
      year = {1991},
}