00338nam a2200085Ia 4500008004100000245005000041260000900091300012000100650003200220180130s9999    xx            000 0 und d  cPerroni, EmiliaaPlay from Freud to Winnicott  c2014  aBook title: Play : psychoanalytic perspectives, survival and human development--Acession number C18636; pages 28-32  aPLAY--PSYCHOLOGICAL ASPECTS