Benjamin, A., & Shermer, M. (2006). Secrets of mental math: The mathemagician's guide to lightning calculation and amazing math tricks. Three Rivers Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBenjamin, Arthur, और Michael Shermer. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks. New York: Three Rivers Press, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBenjamin, Arthur, और Michael Shermer. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks. Three Rivers Press, 2006.
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