@article{907978,
      author = {Legendre, Pierre, and Legendre, Louis. and Legendre,  Louis. and Legendre, Pierre,},
      url = {http://library.usi.edu/record/907978},
      title = {Numerical ecology [electronic resource] /},
      publisher = {Elsevier,},
      recid = {907978},
      pages = {xvi, 990 p. :},
      address = {Amsterdam ;},
      year = {2012},
}