George Polya · P.G. · P. George
Ishi Press · Wydawnictwo Naukowe
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Jak to rozwiazac? | 978-83-01-15819-4 (83-01-15819-0) | 2012 |
| Mathematical Discovery on Understanding, Learning, and Teaching Problem Solving | 978-4-87187-832-6 (4-87187-832-5) | 2009 |