@article{773119,
      author = {Peterson, A. Townsend},
      url = {http://library.usi.edu/record/773119},
      title = {Ecological niches and geographic distributions [electronic  resource] /},
      publisher = {Princeton University Press,},
      recid = {773119},
      pages = {x, 314 p. :},
      address = {Princeton [N.J.] :},
      year = {2011},
}