Peaceful Settlement among African States: Roles of the United Nations and the Organisation of African Unity.by Berhanykun Andemicael;The Quiet Approach: A Study of the Good Offices Exercised by the United Nations Secretary-General in the Cause of Peace.by Vratislav Pechota;Analysis and Prediction in International Mediation.by Frank Edmead;Complementary Structures of Third Party Settlement of International Disputes.by Vratislav Pechota;Consultation and Consensus in the Security Council.by F. Y. Chai