How to solve it
Pólya, George
How to solve it a new aspect of mathematical method. - 2d ed. - Garden City, N.Y. Doubleday 1957. - 253 p. 18 cm. - Doubleday anchor books, A93 .
57005794 //r912
Mathematics--Study and teaching.
Mathematics--Problems, exercises, etc.
QA11 / .P6 1957
510.7
How to solve it a new aspect of mathematical method. - 2d ed. - Garden City, N.Y. Doubleday 1957. - 253 p. 18 cm. - Doubleday anchor books, A93 .
57005794 //r912
Mathematics--Study and teaching.
Mathematics--Problems, exercises, etc.
QA11 / .P6 1957
510.7