00315nam a2200109Ia 4500008004100000040003800041100001300079245004900092260003600141300001300177653001500190211214s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aFreud, S 0aGroup psychology and the analysis of the ego  bTHE HOGARTH PRESSaLONDONc1949  a133 P p.  aPSYCHOLOGY