@article{241148,
      note = {Cover title.},
      author = {Scott, Robert B.},
      url = {http://library.usi.edu/record/241148},
      title = {Preliminary geologic map of the Gregerson Basin  quadrangle, Lincoln County, Nevada [microform] /},
      publisher = {U.S. Geological Survey,},
      recid = {241148},
      pages = {20 leaves :},
      address = {[Denver, CO] :},
      year = {1990},
}