Lehto, O. (1998). Mathematics without borders: A history of the International Mathematical Union. Springer.
शिकागो स्टाइल उद्धरणLehto, Olli. Mathematics Without Borders: A History of the International Mathematical Union. New York: Springer, 1998.
एमएलए उद्धरणLehto, Olli. Mathematics Without Borders: A History of the International Mathematical Union. Springer, 1998.
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