@article{109402,
      note = {Statistical annex: p. 13-22.},
      author = {Clark, Don P.},
      url = {http://digitallibrary.un.org/record/109402},
      title = {Incidence of non-tariff measures on imports of GSP-covered  products : study /},
      publisher = {UN,},
      recid = {109402},
      pages = {ii, 22 p. :},
      address = {Geneva :. 1991-02-15},
      year = {1991},
      month = {Feb},
}