Cite
HARVARD Citation
Dooley, J. (2016) Codes, ciphers and spies : tales of military intelligence in World War I. [Online]. Cham : Copernicus. Available from: http://access.bl.uk/ark:/81055/vdc_100073570377.0x000001
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Dooley, J. (2016) Codes, ciphers and spies : tales of military intelligence in World War I. [Online]. Cham : Copernicus. Available from: http://access.bl.uk/ark:/81055/vdc_100073570377.0x000001