@article{181369,
      url = {http://digitallibrary.un.org/record/181369},
      title = {Protecting the ozone layer. Volume 1, Refrigerants.},
      publisher = {United Nations Environment Programme, Industry and  Environment Programme Activity Centre,},
      recid = {181369},
      pages = {40 p. :},
      address = {Paris :. 1992},
      year = {1992},
}