00451nam a2200169Ia 4500008004100000020001500041082001900056100002000075245004000095250000600135260004800141300000800189650002300197650001800220653002500238653001800263170901s1976    xx            000 0 und d  a0521210879  a581.5222bM31E  aMansfield, T.A. 0aEffects of air pollutants on plants  a1  aCambridgebCambridge University Pressc1976  a209  aBotanical sciences  aPure Sciences  aEnvironmental stress  aPlant ecology