Aczel , A. D. Finding Zero: A Mathematician Odyssey to Uncover the Origins of Numbers. St. Martina Griffin.
Lua i Stíl Chicago (17ú heag.)Aczel , Amir D. Finding Zero: A Mathematician Odyssey to Uncover the Origins of Numbers. New York: St. Martina Griffin.
Lua MLA (9ú heag.)Aczel , Amir D. Finding Zero: A Mathematician Odyssey to Uncover the Origins of Numbers. St. Martina Griffin.
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