How to solve it
Polya, G.
How to solve it a new aspect of mathematical method foreword by John H. Conway - exp. - Princeton Princeton University Press 2004 - xxvii, 253p. - Princeton Science library .
069111966X
510.9 / P781.HS
How to solve it a new aspect of mathematical method foreword by John H. Conway - exp. - Princeton Princeton University Press 2004 - xxvii, 253p. - Princeton Science library .
069111966X
510.9 / P781.HS
