APA (7th ed.) Citation

Shaffer, R., Alexander, D., Cockburn, P., & Alexander, Y. (2019). The Islamic State: History, transnationalism, and implications. Terrorism and political violence, 31(4), 883-891. doi:10.1080/09546553.2019.1621639

Chicago Style (17th ed.) Citation

Shaffer, Ryan, Dean Alexander, Patrick Cockburn, and Yonah Alexander. "The Islamic State: History, Transnationalism, and Implications." Terrorism and Political Violence 31, no. 4 (2019): 883-891. https://doi.org/10.1080/09546553.2019.1621639.

MLA (9th ed.) Citation

Shaffer, Ryan, et al. "The Islamic State: History, Transnationalism, and Implications." Terrorism and Political Violence, vol. 31, no. 4, 2019, pp. 883-891, https://doi.org/10.1080/09546553.2019.1621639.