00338nam a2200133Ia 4500008004100000020001800041082001000059100002800069245004200097260002900139300001000168942000700178999001900185240715s9999    xx            000 0 und d  a8089104930368  a617.8  aOstwald Peter F.993799 0aCommunication and Social Interaction   bGrun and Stratton c1977  a365p.  cBK  c256636d256637