@article{261916,
      note = {Cover title.},
      author = {Kunk, Michael J. and Snee, Lawrence W.},
      url = {http://library.usi.edu/record/261916},
      title = {⁴⁰Ar/³⁹Ar age-spectrum data of Neogene and younger  basalts in west central Colorado [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey,},
      recid = {261916},
      pages = {112 p. :},
      address = {Denver, Colo. :},
      year = {1998},
}