The Colombo Plan for co-operative economic development in South and South-East Asia : the special topic, 'The role of external assistance in increasing agricultural production and improving food distribution in the Colombo Plan area' (country papers, the consultants' working paper & the special topic chapter) of the 25th Consultative Committee Meeting, Sri Lanka, 25 November-3 December 1975 (Colombo Plan Bureau, 1976)