@article{130117,
      url = {http://digitallibrary.un.org/record/130117},
      title = {Digital information system for cadastral survey : paper /},
      publisher = {UN,},
      recid = {130117},
      pages = {6, [2] p. :},
      address = {[Bangkok] :. 1987-01-05},
      year = {1987},
      month = {Jan},
}