@article{196721,
      recid = {196721},
      author = {Finkelman, Robert B.},
      title = {The U.S. Geological Survey Coal Quality data base  (COALQUAL) [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;  [Denver, Colo. :},
      address = {[Reston, Va.?] :},
      pages = {46 leaves :},
      year = {1994},
      note = {Cover title.},
      url = {http://library.usi.edu/record/196721},
}