@article{257897,
      note = {Cover title.},
      author = {Varnes, David J.},
      url = {http://library.usi.edu/record/257897},
      title = {Measurement of ridge-spreading movements (Sackungen) at  Bald Eagle Mountain, Lake County, Colorado, II continuation  of the 1975-1989 measurements using a Global Positioning  System in 1997 and 1999 / [microform] :},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey,},
      recid = {257897},
      pages = {23 leaves :},
      address = {Denver, CO :},
      year = {2000},
}