Geometric Magic Squares: A Challenging New Twist Using Colored Shapes Instead of NumbersЭлектронная книгаGeometric Magic Squares: A Challenging New Twist Using Colored Shapes Instead of NumbersавтораLee C.F. SallowsРейтинг: 5 из 5 звезд5/5Сохранить Geometric Magic Squares: A Challenging New Twist Using Colored Shapes Instead of Numbers на потом