Annexes: 1. Note verbale dated 13 March 1978 from the Secretary-General to States Members of the United Nations -- 2. Letter dated 17 March 1978 from the Secretary-General to the executive heads of interested specialized agencies -- 3. Note verbale dated 18 July 1978 from the Secretary-General to States Members of the United Nations -- 4. Letter dated 18 July 1978 from the Secretary-General to the executive heads of interested specialized agencies.