@article{452681,
      note = {Includes information note on work carried out by ISO  Technical Committee "ISO/TC 145, Graphical Symbols".},
      url = {http://digitallibrary.un.org/record/452681},
      title = {Graphical symbols, safety identification, signs, shapes,  symbols and colours, comprehensibility /},
      publisher = {UN,},
      recid = {452681},
      pages = {6 p.},
      address = {Geneva :. 2001-10-01},
      year = {2001},
      month = {Oct},
}