 But he fell into disagreements with Penguin's parent company Pearson Longman, and was removed in 1976.During this period (1955-1976) he was for ten years a part-time member of the United Nations Sub-Commission on the Promotion and Protection of Human Rights, and was Chairman of the Africa Bureau, the London Library, Chios Charities, and Open University Enterprises Ltd.He also served on the governing bodies of Chatham House, the Institute of Strategic Studies, and Amnesty International.