00754nam0-22002771i-450-99000204152040332120060518103916.0000204152FED01000204152(Aleph)000204152FED0100020415220030910d1979----km-y0itay50------baengBumblebee economicsBernd HeinrichCambridgeHarvard University1979245 p., 1 tv.24 cmImenotteriApoidea595.79Heinrich,Bernd86899ITUNINARICAUNIMARCBK99000204152040332161 V E.3/234625 (27/3/80)DAGENDAGENBumblebee economics407017UNINA