TY - BOOK A1 - Wolff, P. H. T1 - The developmental psychologies of Jean Piaget and psychoanalysis, New York (International Universities Press) 1960. Y1 - 1960 UR - https://opus4.kobv.de/opus4-Fromm/frontdoor/index/index/docId/23132 N1 - Marks in the copy ER -