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The colossal book of mathematics : classic puzzles, paradoxes, and problems : number theory, algebra, geometry, probability, topology, game theory, infinity, and other topics of recreational mathematics
, 2001 Martin Gardneropenalex The colossal book of short puzzles and problems : combinatorics, probability, algebra, geometry, topology, chess, logic, cryptarithms, wordplay, physics and other topics of recreational mathematics
, 2006 Martin Gardner, Dana Richardsopenalex