Policies and prespectives for the Economic and Social Development of the ESCAP region: review and appraisal of the implementation of the substantial new programme of action for the 1980s for the least developed countries (item 4 (c) of the provisional agenda) : report on the implementation of commission resolution 242 (XLI) on the implementation of the subst (ESCAP : forty-second session 22 April-2 May 1986 Bangkok, 1986)