00321nam a2200085Ia 4500008004100000100001900041245011200060260004000172650002300212190829s9999||||xx |||||||||||||| ||und||  aBeer, Gavin De 0aVertebrate Zoology: An Introduction To The Comparative Antomy, Embryology And Evolution of Chordate Animals  bSidgwick And JacksonaLondon c1956  aVertebrate Zoology