00297nam a2200109Ia 4500008004100000040003800041100001900079245002100098260003900119300001700158653001200175211214s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aElton, Charles 0aAnimal ecologty.  bSIDGWICK AND JACKSONaLONDONc1926  aXX, 178 p p.  aZOOLOGY