TY  - BOOK
AU  - Pólya,George
TI  - How to solve it: a new aspect of mathematical method 
SN  - 9780140124996
PY  - 1990///, c1985
CY  - Harmondsworth
PB  - Penguin
KW  - Heuristic
KW  - Problem solving
KW  - Mathematics
KW  - Study and teaching
KW  - Research
N1  - Includes bibliographical references
ER  -