Não informado. (2007). History of Mathematics. American Mathematical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. History of Mathematics. Providence, RI: American Mathematical Society, 2007.
Lua MLA (8ú heag.)Não informado. History of Mathematics. American Mathematical Society, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.