@article{103259,
      url = {http://digitallibrary.un.org/record/103259},
      title = {UN/ECE standard S-1 seed potatoes.},
      publisher = {UN,},
      recid = {103259},
      pages = {1 p.},
      address = {Geneva :. 1983-05-20},
      year = {1983},
      month = {May},
}