Bibliography

See A. Ind, A Short History of Espionage (1963); R. W. Rowan and R. G. Deindorfer, Secret Service: Thirty-Three Centuries of Espionage (rev. ed. 1967); R. Friedman, Advanced Technology Warfare (1985); G. Treverton, Covert Action (1989); J. Keegan, Intelligence in War (2003).

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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