@article{152599,
      author = {Berta, Annalisa.},
      url = {http://library.usi.edu/record/152599},
      title = {New specimens of the Pinnipediform Pteronarctos from the  Miocene of Oregon /},
      publisher = {Smithsonian Institution Press,},
      recid = {152599},
      pages = {iii, 30 p. :},
      address = {Washington, D.C. :},
      year = {1994},
}