How to solve it: a new aspect of mathematical method
Polya, G.
How to solve it: a new aspect of mathematical method - 2nd ed. - London Penguin books 1990 - xli, 253p. pbk.
9780140124996
MATHEMATICS
FOUNDATIONS OF MATHEMATICS
HEURISTIC THEORY
510.21 / POL-H
How to solve it: a new aspect of mathematical method - 2nd ed. - London Penguin books 1990 - xli, 253p. pbk.
9780140124996
MATHEMATICS
FOUNDATIONS OF MATHEMATICS
HEURISTIC THEORY
510.21 / POL-H