Monitoring of air pollutants by plants : methods and problems proceedings of the international workshop, Osnabruck (ERG), September 24-25, 1981 - Steubing, L. (Lore); Jager, H. J. (The Hague : Dr. W. Junk, 1982)
Includes bibliographical references
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Keywords: Plants, Effect of air pollution on -- Congresses; Air -- Pollution -- Measurement -- Congresses; Plant indicators -- Congresses