00259nam a2200097Ia 4500008004100000082002700041100002200068245002300090260004100113300000700154140113s9999    xx            000 0 und d  a581.331.2:612.017   L9  a"Knox, Bruce. R."  aPollen and allergy  a1979bEdward Arnold(Pub)Ltd.cLondon  a59