Proposed programme budget for the biennium 1974-1975 and medium-term plan for the period 1974-1977 : revised estimates resulting from decision of the Economic and Social Council at its 54th and 55th sessions, the Trade and Development Board at the 2nd part of its 12th session and the Industrial Development Board at its 7th session : 10th report of the Advisory Committee on Administrative and Budgetary Questions to the General Assembly at its 28th session on the proposed programme budget for the biennium 1974-1975