Cite
MLA Citation
GCHQ. The GCHQ Puzzle Book II.. London : Michael Joseph, 2018. http://access.bl.uk/ark:/81055/vdc_100068762490.0x000001
This is an interim version of our Electronic Legal Deposit Catalogue-eJournals and eBooks while we continue to recover from a cyber-attack.
GCHQ. The GCHQ Puzzle Book II.. London : Michael Joseph, 2018. http://access.bl.uk/ark:/81055/vdc_100068762490.0x000001