TY  - BOOK
AU  - Benjamin,Arthur
TI  - Secrets of mental math: the mathemagician's guide to lightning calculation and amazing math tricks 
SN  - 978-0-307-33840-2
U1  - 510.76 B468  2006 
PY  - 2006///
CY  - New York
PB  - Three Rivers Press
KW  - Mental arithmetic - Study and teachings
KW  - Magic tricks in mathematics education
N1  - Includes index
ER  -