@article{464698,
      url = {http://digitallibrary.un.org/record/464698},
      title = {Generalized system of preferences : rules of origin : note  /},
      publisher = {UN,},
      abstract = {Transmits information received from El Salvador regarding  certification of origin.},
      recid = {464698},
      pages = {3 p. :},
      address = {Geneva :. 2002-04-15},
      year = {2002},
      month = {Apr},
}