@article{911039,
      author = {Smith, Vernon L.},
      url = {http://library.usi.edu/record/911039},
      title = {Economics of natural & environmental resources/},
      publisher = {Routledge,},
      recid = {911039},
      pages = {1 online resource (xi, 502 p.) :},
      address = {Oxfordshire, England ;},
      year = {2013},
}