@article{94506,
      url = {http://digitallibrary.un.org/record/94506},
      title = {Trade data interchange protocols : enhancement of the  Guidelines for Trade Data Interchange (GTDI) : service  segment directory /},
      publisher = {UN,},
      recid = {94506},
      pages = {1, 13 p. :},
      address = {Geneva :. 1986-07-08},
      year = {1986},
      month = {Jul},
}