Julian Richards, “Signals intelligence”, in R. Dover, M. Goodman and C. Hillebrand (eds), The Routledge Companion to Intelligence Studies (London: Routledge, 2013), ch.8

Richards, J., “Signals intelligence”, in R. Dover, M. Goodman and C. Hillebrand (eds), The Routledge Companion to Intelligence Studies (London: Routledge, 2013), ch.8. ISBN: 978-0-415-50752-3

 

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