TY - BOOK A1 - Kaufmann, H. T1 - Aggression and Altruism, New York, et al. (Holt, Rinehart and Winston) 1970. Y1 - 1970 UR - https://opus4.kobv.de/opus4-Fromm/frontdoor/index/index/docId/13295 N1 - Notes in the copy ER -