TY  - BOOK
AU  - Polya,George
TI  - How to solve it
PY  - 1957///
CY  - Garden City, N.Y.
PB  - Doubleday
KW  - Mathematics
KW  - Study and teaching
KW  - Problems, exercises, etc
N1  - Pages 1-4 of this book is missing
ER  -