@article{198979,
      note = {Distributed to depository libraries in microfiche.},
      author = {Wenrich, Karen J.},
      url = {http://library.usi.edu/record/198979},
      title = {Stream-sediment and panned-concentrate geochemical surveys  for gold in Precambrian rock, western Grand Canyon, Arizona  [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey :},
      recid = {198979},
      pages = {50 p. :},
      address = {Denver, CO :},
      year = {1992},
}