How to solve it
Pólya, George
How to solve it a new aspect of mathematical method. - Princeton, N.J. Princeton University Press 1948. - xv, 204 p. diagrs.
bvc00001886 //r914
Mathematics--Study teaching.
Mathematics--Problems, exercises, etc.
QA11 / .P6
510.7
How to solve it a new aspect of mathematical method. - Princeton, N.J. Princeton University Press 1948. - xv, 204 p. diagrs.
bvc00001886 //r914
Mathematics--Study teaching.
Mathematics--Problems, exercises, etc.
QA11 / .P6
510.7