@article{663763,
      url = {http://digitallibrary.un.org/record/663763},
      title = {Classification method for transport statistics (NST 2007)  :  version 2 of Central Product Classification : note /},
      publisher = {UN,},
      recid = {663763},
      pages = {10 p. :},
      address = {Geneva :. 2009-04-06},
      year = {2009},
      month = {Apr},
}