APA (7th ed.) Citation

Regan, R. J. (1996). Just war: Principles and cases. Catholic University of America Press.

Chicago Style (17th ed.) Citation

Regan, Richard J. Just War: Principles and Cases. Washington, DC: Catholic University of America Press, 1996.

MLA (8th ed.) Citation

Regan, Richard J. Just War: Principles and Cases. Catholic University of America Press, 1996.