Benjamin, A., & Shermer, M. (2006). Secrets of mental math: The mathemagician's guide to lightning calculation and amazing math tricks. Three Rivers Press.
Citazione stile Chigago Style (17a edizione)Benjamin, Arthur, e Michael Shermer. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks. New York: Three Rivers Press, 2006.
Citatione MLA (9a ed.)Benjamin, Arthur, e Michael Shermer. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks. Three Rivers Press, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.