Clarke, R. A., & Knake, R. K. (2010). Cyber war: The next threat to national security and what to do about it (1st ed.-.). Ecco.

Clarke, Richard A., and Robert K. Knake. Cyber War: The Next Threat to National Security and What to Do About It. 1st ed.-. New York: Ecco, 2010.

Clarke, Richard A., and Robert K. Knake. Cyber War: The Next Threat to National Security and What to Do About It. 1st ed.-. Ecco, 2010.