@article{268597,
      author = {Nielsen, Claus.},
      url = {http://library.usi.edu/record/268597},
      title = {Animal evolution interrelationships of the living phyla /  [electronic resource] :},
      publisher = {Oxford University Press,},
      recid = {268597},
      pages = {1 online resource (ix, 467 p.) :},
      address = {Oxford :},
      year = {1995},
}