TY  - BOOK
AU  - Handley,  Bill
AU  - Handley,  Bill
TI  - Speed mathematics :  secret skills for quick calculation    
SN  - 9780471467311
AV  - 510 HAN 2003 
U1  - 510 HAN 2003 
PY  - 2003///
CY  - New Jersey
PB  - Wiley
KW  - Mathematics
ER  -