How to solve it;
Pólya, George,
How to solve it; a new aspect of mathematical method - 2d ed. - Princeton, N.J., Princeton University Press [1971, c1957] - xxi, 253 p. - Princeton paperbacks, no. 246 .
9780691150956
Mathematics
Mathematics
510.7 / POL
How to solve it; a new aspect of mathematical method - 2d ed. - Princeton, N.J., Princeton University Press [1971, c1957] - xxi, 253 p. - Princeton paperbacks, no. 246 .
9780691150956
Mathematics
Mathematics
510.7 / POL