00361nam a2200121Ia 4500008004100000082001500041100001700056245003800073260002500111300001000136630001800146650007500164211109s9999||||xx |||||||||||||| ||und||  a577bWIL-P  aWilliam, C B 0aPatterns in the Balance of Nature  bAcademic Pressa1964  a324p.  xGeneral Stack  aNATURAL SCIENCES & MATHAMATICSvLIFE SCIENCES, BIOLOGYECOLOGYxZoology