@article{404968,
      url = {http://library.usi.edu/record/404968},
      title = {Valuing ecosystem services: toward better environmental  decision-making /},
      publisher = {National Academies Press,},
      recid = {404968},
      pages = {xii, 277 p. :},
      address = {Washington, D.C. :},
      year = {2005},
}