Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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