00385nam a2200133Ia 4500008004100000082001800041100002300059245006900082260003400151300001000185600002100195600002100216650001400237140113s9999    xx            000 0 und d  a614.71:631 M2  a" Unsworth, M. H."  aEffects of gaseous air pollution in agriculture and horticulture  b"London : Butterworths, 1962"  a532p.  a" Ormrod, D. P."  a" Ormrod, D. P."  aPollution