First scientific American book of mathematical puzzles and games Second scientific American book of mathematical puzzles and diversions Second Scientific American Book of mathematical puzzles and diversions Second Scientific American Book of Mathematical Puzzles and Diversions The Second Scientific American Book of Mathematical Puzzles and Diversions 并列题名:Second Scientific American Book of Mathematical Puzzles and Diversions 并列题名:The Second Scientific American Book of Mathematical Puzzles and Diversions The Scientific American Book of the Cosmos