479905
9781402705410
Barry R. Clarke has written a regular column for The Daily Telegraph (UK) as well as several books of original puzzles Barry holds a Masters degree in Quantum Mechanics with published papers on perturbation methods and is currently working on a revision of the theory of the hydrogen atom. Despite this, he still has time to feed his cat TiggerClarke, Barry R. is the author of 'Challenging Logic Puzzles' with ISBN 9781402705410 and ISBN 1402705417.
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