MLA

Ou, Xinming, and Anoop Singhal. Quantitative Security Risk Assessment of Enterprise Networks. Springer New York, 2011.

APA

Ou, X., & Singhal, A. (2011). Quantitative Security Risk Assessment of Enterprise Networks. Springer New York.

Chicago

Ou, Xinming, and Anoop Singhal. Quantitative Security Risk Assessment of Enterprise Networks. : Springer New York, 2011.