@article{468271,
      author = {Collins, James P. and Crump, Martha L.},
      url = {http://library.usi.edu/record/468271},
      title = {Extinction in our times global amphibian decline /  [electronic resource] :},
      publisher = {Oxford University Press,},
      recid = {468271},
      pages = {xx, 273 p. :},
      address = {Oxford ;},
      year = {2009},
}