TY  - BOOK
AU  - Polya, G.
TI  - How to solve it: a new aspect of mathematical method
SN  - 9780140124996
U1  - 510.21 
PY  - 1990///
CY  - London
PB  - Penguin books
KW  - MATHEMATICS
KW  - FOUNDATIONS OF MATHEMATICS
KW  - HEURISTIC THEORY
ER  -