Socialist International (SI). (1972). The International, 1969 to 1971: General secretary's report to the Helsinki Council Conference of the Socialist International, 25-27 May 1971. London: SI.
Chicago Style (17th ed.) CitationSocialist International (SI). The International, 1969 to 1971: General Secretary's Report to the Helsinki Council Conference of the Socialist International, 25-27 May 1971. London: SI, 1972.
MLA (8th ed.) CitationSocialist International (SI). The International, 1969 to 1971: General Secretary's Report to the Helsinki Council Conference of the Socialist International, 25-27 May 1971. London: SI, 1972.
Warning: These citations may not always be 100% accurate.