APA (7th ed.) Citation
Gregg, S. (2009). The modern papacy. Continuum.
Chicago Style (17th ed.) Citation
Gregg, Samuel. The Modern Papacy. New York: Continuum, 2009.
MLA (9th ed.) Citation
Gregg, Samuel. The Modern Papacy. Continuum, 2009.
Warning: These citations may not always be 100% accurate.