APA (7th ed.) Citation

ProQuest (Firm), Gerli, E. M., & Armistead, S. G. (2003). Medieval Iberia: An encyclopedia. Routledge.

Chicago Style (17th ed.) Citation

ProQuest (Firm), E. Michael Gerli, and Samuel G. Armistead. Medieval Iberia: An Encyclopedia. New York: Routledge, 2003.

MLA (9th ed.) Citation

ProQuest (Firm), et al. Medieval Iberia: An Encyclopedia. Routledge, 2003.