TY  - BOOK
AU  - Pólya,George
TI  - Mathematical discovery: on understanding, learning and teaching problem solving
AV  - QA 43 P62
PY  - 1962///
CY  - New York
PB  - John Wiley and Sons
KW  - Matemáticas
KW  - Problemas, ejercicios, etc
KW  - Problemas
ER  -