APA (7th ed.) Citation

Powell, J. M. (2004). The deeds of Pope Innocent III. Catholic University of America Press.

Chicago Style (17th ed.) Citation

Powell, James M. The Deeds of Pope Innocent III. Washington, D.C.: Catholic University of America Press, 2004.

MLA (9th ed.) Citation

Powell, James M. The Deeds of Pope Innocent III. Catholic University of America Press, 2004.