@article{167605,
      url = {http://digitallibrary.un.org/record/167605},
      title = {International Cooperative Programme for Research on  Evaluating Effects of Air Pollutants and Other Stresses on  Agricultural Crops : progress report /},
      publisher = {UN,},
      recid = {167605},
      pages = {2 p.},
      address = {Geneva :. 1993-04-28},
      year = {1993},
      month = {Apr},
}