522,512 INTERNATIONAL Ninth International Congress on Tropical Medicine and Malaria. Under the auspices of the Hellenic Ministry of Social Services and The Hellenic Ministry of Culture and Science. Proceedings of the Plenary Sessions 14-21 October, 1973.Athens, Greece. London 1974 Staples and Staples Ltd. 8° s. IV, 66. Suppl. to the Journal of Tropical Medicine and Hygiene vol. 77