Benjamin, A. (2006). Secrets of mental math: The mathemagician's guide to lightning calculation. Three rivers.
Lua i Stíl Chicago (17ú heag.)Benjamin, Arthur. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation. New York: Three rivers, 2006.
Lua MLA (9ú heag.)Benjamin, Arthur. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation. Three rivers, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.