@article{714383,
      url = {http://digitallibrary.un.org/record/714383},
      title = {Sudan [cartographic material]},
      publisher = {UN,},
      recid = {714383},
      pages = {1 map :},
      address = {[New York] :. 1993-08},
      year = {1993},
      month = {Aug},
}