Bletchley Park Puzzles and Brainteasers: Could YOU be a top secret codebreaker? (Children's Edition)
by McKay, Sinclair Sinclair McKay,
ISBN 13: 9781526368706
Format: paperback Publisher: Wren & Rook
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100 People You Never Knew Were at Bletchley Park
by Sinclair McKay
ISBN 13: 9781838405120
Format: Hardcover (256 pages) Publisher: Safe Haven Books Published: 04 Oct 2021