Correspondence (1978) on ICPHS activities and UNESCO meetings and projects. Files on collaborative meetings (The Slave Trade, 31 January-4 February 1978, Port-au-Prince; Mediterranean Islands, Places of Synthesis of Arab and European Cultures, 11-14 September 1978, Malta; Round Table on the occasion of the 23rd centenary of the death of Aristotle, 1-3 June 1978, Paris) and the 20th General Conference (1978)
