APA (7th ed.) Citation

Otis, P. (2004). Religion and war in the twenty-first century. Religion and security, 11-24.

Chicago Style (17th ed.) Citation

Otis, Pauletta. "Religion and War in the Twenty-first Century." Religion and Security 2004: 11-24.

MLA (8th ed.) Citation

Otis, Pauletta. "Religion and War in the Twenty-first Century." Religion and Security, 2004, pp. 11-24.