00318nam a2200109Ia 450000500170000000800410001708200150005810000200007324500690009326000380016230000080020020260224040845.0260224s9999||||xx |||||||||||||| ||und||  a581.31 UNS  aUnsworth, M.H.  0aEffects of gaseous air pollution in agriculture and horticulture  aLondon: Butterworths & Co. c1982  a532