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Sipri Yearbook of World Armaments and Disarmament 1969/70 Sipri Yearbook of World Armaments and Disarmament 1969/70. Stockholm: Almqvist & Wiksell; New York: Humanities Press; London: Gerald Duckworth; New Delhi: Oxford & IBH. 1970. 540 pp. Index. (Stockholm International Peace Research Institute.) £3.15. Hardback: £6.25. International Affairs, Volume 47, Issue 2, April 1971, Page 481, https://doi.org/10.1093/ia/47.2.481 Published: 01 April 1971
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A 1971 study studied this question.
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