APA (7th ed.) Citation

Barnard, R. L. (1988). Intrusion detection systems (2nd ed.). Butterworths.

Chicago Style (17th ed.) Citation

Barnard, Robert L. Intrusion Detection Systems. 2nd ed. Boston: Butterworths, 1988.

MLA (8th ed.) Citation

Barnard, Robert L. Intrusion Detection Systems. 2nd ed. Butterworths, 1988.

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