00341nam a2200121Ia 4500008004100000082001900041100001600060245003900076260004600115300001000161630001800171650003000189211109s9999||||xx |||||||||||||| ||und||  a591.012bMAY.E  aMayr, Ernst 0aPrinciples Of A Systematic Zoology  bMc Graw-Hill Book CompanyaNew Yorkc1900  a428p.  xGeneral Stack  aAnimalsvZoologyxZoology