The Alan Turing Cryptic Codebreaking Puzzle Book - Paperback - VERY GOOD

The Alan Turing Cryptic Codebreaking Puzzle Book - Paperback - GOOD

The Alan Turing Cryptic Codebreaking Puzzle Book: Foreword by Sir Dermot Tur...

The Alan Turing Cryptic Codebreaking - Paperback, by Moore Dr Gareth - Very Good

The Alan Turing Cryptic Codebreakin..., Moore, Dr Garet

The Alan Turing Codebreaker's Puzzl..., Moore, Dr Garet

Alan Turing: Remarkable Lives by Dermot Turing Paperback Book

The Alan Turing Codebreaker's Puzzle Book (Themed puzzles) by Dr Gareth Moore