@article{171661,
      note = {Includes bibliographical references.},
      url = {http://digitallibrary.un.org/record/171661},
      title = {An integrated approach towards functional classifications  /},
      publisher = {UN,},
      recid = {171661},
      pages = {14 p. :},
      address = {Geneva :. 1994-04-05},
      year = {1994},
      month = {Apr},
}