@article{200561,
      note = {Chiefly tables.},
      author = {McCammon, Richard B.},
      url = {http://library.usi.edu/record/200561},
      title = {Quantitative assessments of the energy and mineral  resources within eighteen wilderness study areas in the  States of Colorado, Nevada, Oregon, and Utah [microform] /},
      publisher = {U.S. Geological Survey,},
      recid = {200561},
      pages = {47 leaves :},
      address = {[Reston, Va.] :},
      year = {1991},
}