@article{254592,
      note = {Bibliography: p. 44-46.},
      author = {Heal, G.M.},
      url = {http://digitallibrary.un.org/record/254592},
      title = {Valuing our future : cost-benefit analysis and  sustainability /},
      publisher = {UNDP Office of Development Studies,},
      recid = {254592},
      pages = {vii, 47 p. :},
      address = {New York :. 1997},
      year = {1997},
}