@article{762829,
      note = {On cover page: GEMS PAC information series},
      url = {http://digitallibrary.un.org/record/762829},
      title = {Selected works on ecological monitoring of arid areas},
      publisher = {UNEP,},
      recid = {762829},
      pages = {135 p. :},
      address = {Nairobi :. 1990-04},
      year = {1990},
      month = {Apr},
}