00283nam a2200097Ia 4500008004100000082001400041100002300055245005300078260004400131300001000175140113s9999    xx            000 0 und d  a595.79 L3  a" Milliron, H. E."  aA monograph of the western hemisphere bumblebbes  b"Entomological society of Canada, 1973"  a237p.