00293nam a2200109Ia 4500008004100000082001700041100001900058245003700077260004700114300001000161650001200171140113s9999    xx            000 0 und d  a592 / 599 K9  a" Mayr, Ernst"  aPrinciples of systematic zoology  b"TataMcgrsw-hill publishing company, 1969"  a428p.  aZoology