@article{236226,
      url = {http://digitallibrary.un.org/record/236226},
      title = {Labelling and hazard communication systems : specification  of colours for class labels /},
      publisher = {UN,},
      recid = {236226},
      pages = {3 p.},
      address = {Geneva :. 1996-05-03},
      year = {1996},
      month = {May},
}