@article{282606,
      author = {Valentine, James W.},
      url = {http://library.usi.edu/record/282606},
      title = {On the origin of phyla /},
      publisher = {University of Chicago Press,},
      recid = {282606},
      pages = {xxiv, 614 p. :},
      address = {Chicago :},
      year = {2004},
}