00298nam a2200097Ia 4500008004100000082002300041100002800064245005900092260004100151300000800192140113s9999    xx            000 0 und d  a595.799:599.55  L4  a"Michemer, Charles. D."  aThe Social behaviour of the bees : A comparative study  a1974bHarward University PresscMass  a404