TY - JOUR A1 - Bertalanffy, Ludwig von T1 - Comments on Aggression, presented at the 1956 Winter Meeting of the American Psychoanalytic Association, New York City. Y1 - 1956 N1 - Scan of Fromm's xeroxcopy ER - TY - JOUR A1 - Bertalanffy, Ludwig von T1 - A Biologist Looks at Human Nature JF - Scientific Monthly (Jan. 1956), pp. 33-41. Y1 - 1956 N1 - Scan of Fromm's xeroxcopy ER -