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Mathematics and Plausible Reasoning [Two Volumes in One] - Paperback Mathematics and Plausible Reasoning [Two Volumes in One] - Paperback
Mathematics and Plausible Reasoning [Two Volumes in One] - Paperback
By George Polya
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How to Solve It: A New Aspect of Mathematical Method - Paperback How to Solve It: A New Aspect of Mathematical Method - Paperback
How to Solve It: A New Aspect of Mathematical Method - Paperback
By George Polya