@article{414837,
      note = {"Prepared and published on behalf of the United Nations  Environment Programme and the World Health Organization in  the framework of the GEMS/AIR programme by MARC, the  Monitoring and Assessment Research Centre, London".},
      url = {http://digitallibrary.un.org/record/414837},
      title = {Air quality management and assessment capabilities in 20  major cities},
      publisher = {MARC ;},
      recid = {414837},
      pages = {viii, 245 p. :},
      address = {London :. 1996},
      year = {1996},
}