TY  - BOOK
AU  - Benjamin, Arthur 
AU  - Shermer, Michael 
TI  - Secrets of Mental Math: Mathemagician’s Guide to Lightning Calculation and Amazing Math Tricks
SN  - 9780307338402
U1  - BEN 
PY  - 2006///
CY  - New York
PB  - Three Rivers Press
ER  -