Education in world perspective : the International Conference on World Educational Problems, celebrating the centennial of Vassar College / Edited by Emmet John Hughes. International Conference on World Educational Problems (1961 : Poughkeepsie, N.Y.) Hughes, Emmet John, 1920- ed. Vassar College. Education Congresses. Civilization, Modern 1950- Congresses. 370 INE New York : Harper & Row, 1962. 1962. 1962 Text xxi, 201 p. ; eng