TY - JOUR A1 - Fries, M. E. A1 - Woolf, P. J. T1 - Some Hypotheses on the Role of the Congenital Activity Type in Personality Development JF - R. S. Eissler et al. (Eds.), The Psychoanalytic Study of the Child, Vol. VIII, New York (International Universities Press) 1953, pp. 48-62. Y1 - 1953 ER -