APA (7th ed.) Citation

Alexander, Y., & Alexander, D. (2015). The Islamic State: Combating The Caliphate Without Borders.

Chicago Style (17th ed.) Citation

Alexander, Yonah, and Dean Alexander. The Islamic State: Combating The Caliphate Without Borders. 2015.

MLA (9th ed.) Citation

Alexander, Yonah, and Dean Alexander. The Islamic State: Combating The Caliphate Without Borders. 2015.

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