APA (7th ed.) Citation

Barraclough, G. (1968). The medieval papacy (1. American ed.). Harcourt, Brace & World.

Chicago Style (17th ed.) Citation

Barraclough, Geoffrey. The Medieval Papacy. 1. American ed. New York: Harcourt, Brace & World, 1968.

MLA (9th ed.) Citation

Barraclough, Geoffrey. The Medieval Papacy. 1. American ed. Harcourt, Brace & World, 1968.