International Phenomenological Conference & Tymieniecka, A. (1972). The later Husserl and the idea of phenomenology: Idealism - realism, historicity and nature ; papers and debate of the International Phenomenological Conference, held at the University of Waterloo, Canada, April 9 - 14, 1969 / ed. by Anna-Teresa Tymieniecka. Reidel.

International Phenomenological Conference and Anna-Teresa Tymieniecka. The Later Husserl and the Idea of Phenomenology: Idealism - Realism, Historicity and Nature ; Papers and Debate of the International Phenomenological Conference, Held at the University of Waterloo, Canada, April 9 - 14, 1969 / Ed. by Anna-Teresa Tymieniecka. Dordrecht: Reidel, 1972.

International Phenomenological Conference and Anna-Teresa Tymieniecka. The Later Husserl and the Idea of Phenomenology: Idealism - Realism, Historicity and Nature ; Papers and Debate of the International Phenomenological Conference, Held at the University of Waterloo, Canada, April 9 - 14, 1969 / Ed. by Anna-Teresa Tymieniecka. Reidel, 1972.