@article{197936,
      note = {Distributed to depository libraries in microfiche.},
      author = {Keith, William J.,},
      url = {http://library.usi.edu/record/197936},
      title = {Megabreccia of the Big Ten Peak caldera, Nye County,  Nevada [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {197936},
      pages = {17 p. :},
      address = {[Menlo Park, Calif.?] :},
      year = {1993},
}