@article{525581,
      note = {Includes internal administrative boundaries.},
      url = {http://digitallibrary.un.org/record/525581},
      title = {Sudan [cartographic material]},
      publisher = {UN,},
      recid = {525581},
      pages = {1 map :},
      address = {[New York] :. 2004-05},
      year = {2004},
      month = {May},
}