TY  - BOOK
AU  - Pólya,George
TI  - How to solve it: a new aspect of mathematical method 
T2  - Princeton paperbacks
SN  - 0691080976
PY  - 1957///
CY  - Princeton, N.J.
PB  - Princeton U.P
KW  - Mathematics
KW  - Study and teaching
KW  - Problems, exercises, etc
ER  -