TY  - BOOK
ED  - Government Code and Cypher School (Great Britain),
TI  - The GCHQ Puzzle Book II
SN  - 9780241365458
AV  - QA268 GCH 
PY  - 2018///
CY  - London
PB  - Michael Joseph
KW  - GAMES & ACTIVITIES / Logic & Brain Teasers
KW  - bisacsh
KW  - GAMES & ACTIVITIES / Trivia
KW  - GAMES & ACTIVITIES / Quizzes
KW  - MATHEMATICS / Logic
KW  - MATHEMATICS / Combinatorics
KW  - REFERENCE / Trivia
KW  - HUMOR / Trivia
KW  - Crosswords
KW  - bicssc
KW  - Trivia & Quiz Question Books
KW  - Indoor Games
KW  - Mathematical Logic
N1  - Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK)
ER  -