11. Decides to declare 19 December, the date on which the General Assembly endorsed the Buenos Aires Plan of Action for Promoting and Implementing Technical Cooperation among Developing Countries,Report of the United Nations Conference on Technical Cooperation among Developing Countries, Buenos Aires, 30 August-12 September 1978 (United Nations publication, Sales No. E.78.II.A.11 and corrigendum), chap. I. as the United Nations Day for South-South Cooperation;
11．决定宣布大会认可《促进和实施发展中国家间技术合作的布宜诺斯艾利斯行动计划》《联合国发展中国家间技术合作会议报告，1978年8月30日至9月12日，布宜诺斯艾利斯》（联合国出版物，出售品编号：C.78.II.A.11和更正），第一章。 的日子12月19日为联合国南南合作日；