TY  - BOOK
AU  - Tyra, M.
TI  - Magical book om quicker maths
U1  - 510 
PY  - 2005///
CY  - Delhi: 
PB  - BSC Publishing Co. Pvt. Ltd., 
KW  - Divisibility
KW  - Math
KW  - Number system
KW  - Probability
ER  -