@article{223075,
      note = {Includes text.},
      author = {Biewick, Laura H.},
      url = {http://library.usi.edu/record/223075},
      title = {Coal fields and federal lands of the conterminous United  States /},
      publisher = {The Survey,},
      recid = {223075},
      pages = {1 map :},
      address = {[Reston, Va.?] :},
      year = {1997},
}