APA (7th ed.) Citation

Nichols, A., Servais, J., & Benedicto XVI, P. (1996). Joseph Ratzinger. San Paolo.

Chicago Style (17th ed.) Citation

Nichols, Aidan, Jacques Servais, and Papa Benedicto XVI. Joseph Ratzinger. Cinisello Balsamo (Milano): San Paolo, 1996.

MLA (9th ed.) Citation

Nichols, Aidan, et al. Joseph Ratzinger. San Paolo, 1996.