By its resolution 1814 (XVII) of 18 December 1962, the General Assembly requested the Secretary-General to publish a Juridical Yearbook which would include certain documentary materials of a legal character concerning the United Nations and related intergovernmental organizations, and by its resolution 3006 (XXVII) of 18 December 1972, the General Assembly made certain changes in the outline of the Yearbook. The present volume, which is the forty-third of the series, has been prepared by the Codification Division of the Office of Legal Affairs.