APA (7th ed.) Citation

Barton, S. (1997). The aristocracy in twelfth century León and Castile Cambridge studies in medieval life and thought.

Chicago Style (17th ed.) Citation

Barton, Simon. "The Aristocracy in Twelfth Century León and Castile." Cambridge Studies in Medieval Life and Thought 1997.

MLA (8th ed.) Citation

Barton, Simon. "The Aristocracy in Twelfth Century León and Castile." Cambridge Studies in Medieval Life and Thought, 1997.