00330nam a2200109Ia 4500008004100000082001500041100001700056245004500073260003300118630001800151650005100169211109s9999||||xx |||||||||||||| ||und||  a150bKRE-T  aKrech, David 0aTheory and Problems of Social Psychology  bMc Graw HillaNew Yorkc1948  xGeneral Stack  aPhilosophy & PsychologyvPsychologyxGeneralia