@article{136163,
      note = {Transmits information received from Mexico regarding  certification of origin.},
      url = {http://digitallibrary.un.org/record/136163},
      title = {Generalized system of preferences : rules of origin : note  /},
      publisher = {UN,},
      recid = {136163},
      pages = {2 p. :},
      address = {Geneva :. 1991-12-10},
      year = {1991},
      month = {Dec},
}