@article{167528,
      url = {http://digitallibrary.un.org/record/167528},
      title = {International Cooperative Programme for Assessment and  Monitoring of Air Pollution Effects on Forests : progress  report /},
      publisher = {UN,},
      recid = {167528},
      pages = {2 p.},
      address = {Geneva :. 1993-04-27},
      year = {1993},
      month = {Apr},
}