@article{263332,
      note = {Relief shown by contours and spot heights.},
      author = {Ward, A. W. and Nealey, L. David.},
      url = {http://library.usi.edu/record/263332},
      title = {Preliminary geologic map of the Pilot Knob quadrangle,  Mohave and Yavapai counties, Arizona [microform] /},
      publisher = {The Survey :},
      recid = {263332},
      pages = {1 microfiche :},
      address = {[Denver, Colo.?] :},
      year = {1990},
}