How to solve it: A new aspect of mathematical method
Polya, G
How to solve it: A new aspect of mathematical method - 1 - New DelhI: Prentice-Hall of India, 2001. - 253p.
510 / POL-H
How to solve it: A new aspect of mathematical method - 1 - New DelhI: Prentice-Hall of India, 2001. - 253p.
510 / POL-H