Ego, hunger, and aggression : a revision of Freud's theory and method 2026-02-16T06:12:08+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Perls, Frederick S. (G. Allen and Unwin ltd, 1947)