Benjamin, A. (2006). Secrets of mental math: The mathemagician's guide to lightning calculation. Three rivers.
Chicagoスタイル(17版)引用形式Benjamin, Arthur. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation. New York: Three rivers, 2006.
MLA(9版)引用形式Benjamin, Arthur. Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation. Three rivers, 2006.
警告: この引用は必ずしも正確ではありません.