books by author
David Wells
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The Penguin Book of Curious And Interesting Puzzles (Penguin science)
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The Penguin Book of Curious And Interesting Mathematics (Penguin mathematics)
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Mindbenders and Brainteasers: 100 Maddening Mindbenders and Curious Conundrums: Where Maths Meets Creative Thinking
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Tony Blair: Making Labour Liberal
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