Alsina, C., & Nelsen, R. B. (2010). Charming proofs: A journey into elegant mathematics. Mathematical Association of America.
Lua i Stíl Chicago (17ú heag.)Alsina, Claudi, agus Roger B. Nelsen. Charming Proofs: A Journey into Elegant Mathematics. Washington, D.C.: Mathematical Association of America, 2010.
Lua MLA (9ú heag.)Alsina, Claudi, agus Roger B. Nelsen. Charming Proofs: A Journey into Elegant Mathematics. Mathematical Association of America, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.