Entertaining Mathematical PuzzlesAnthony Ravielli, Martin GardnerPocketEngelskLegg i handlekurvNettlager
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Bletchley Park Number and Mathematical PuzzlesArcturus Publishing LimitedPocketEngelskDel av serien Bletchley Park PuzzlesLegg i handlekurvNettlager
More Without Words: Mathematical Puzzles to Confound and DelightJames TantonPocketEngelskLegg i handlekurvNettlager
Without Words: Mathematical Puzzles to Confound and DelightJames TantonPocketEngelskLegg i handlekurvNettlager