APA (7th ed.) Citation

Stern, J., & Berger, J. M. (2015). ISIS: The state of terror. William Collins.

Chicago Style (17th ed.) Citation

Stern, Jessica, and J. M. Berger. ISIS: The State of Terror. London: William Collins, 2015.

MLA (8th ed.) Citation

Stern, Jessica, and J. M. Berger. ISIS: The State of Terror. William Collins, 2015.