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The GCHQ Puzzle Book: Perfect for anyone who likes a good headscratcher by GCHQ

by GCHQ

ISBN 13: 9780718185541

Format: Paperback (368 pages)
Publisher: Michael Joseph
Published: 20 Oct 2016

Used : $4.27
New : $17.39

Used : $4.27 New : $17.39

The GCHQ Puzzle Book II: 2 by GCHQ

by GCHQ

ISBN 13: 9780241365434

Format: Paperback (384 pages)
Publisher: Michael Joseph
Published: 18 Oct 2018

Used : $4.27
New : $17.45

Used : $4.27 New : $17.45

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