APA (7th ed.) Citation

Barnard, R. L. (1981). Intrusion detection systems: Principles of operation and application. Butterworth.

Chicago Style (17th ed.) Citation

Barnard, Robert L. Intrusion Detection Systems: Principles of Operation and Application. Boston, [Mass.] London: Butterworth, 1981.

MLA (9th ed.) Citation

Barnard, Robert L. Intrusion Detection Systems: Principles of Operation and Application. Butterworth, 1981.

Warning: These citations may not always be 100% accurate.