@article{241503,
      note = {Cover title.},
      author = {Snavely, P. D. and Wells, Ray E.},
      url = {http://library.usi.edu/record/241503},
      title = {Cenozoic evolution of the continental margin of Oregon and  Washington [microform] /},
      publisher = {U.S. Geological Survey,},
      recid = {241503},
      pages = {v, 34 leaves :},
      address = {[Denver, CO] :},
      year = {1991},
}