TY  - BOOK
AU  - Courant, Richard
AU  - Robbins, Herbert
AU  - Stewart, Ian
TI  - Waht is mathematics?: : an elementary approach to ideas and methods 
SN  - 0195687108
U1  - 510.9 
PY  - 2008///
CY  - New Delhi
PB  - Oxford University Press
ER  -