00305nam a2200097Ia 4500008004100000082001500041100005900056245005700115260002700172300000800199140113s9999    xx            000 0 und d  a595.5   K9  a"Britain, Agriculture & Fisheries & Food (Min. of�)"  aBeneficial Insects & Mites Bull. No. 20  6th edition  a1969bH.M.S.O.cLondon  a118