@article{219411,
      note = {Cover title.},
      author = {Oland, Gustav P. and Orris, G. J.},
      url = {http://library.usi.edu/record/219411},
      title = {Geochemical data from Colombia [microform] /},
      publisher = {U.S. Geological Survey,},
      recid = {219411},
      pages = {2 v. :},
      address = {[Menlo Park, CA] :},
      year = {1996},
}