APA (7th ed.) Citation

Costambeys, M., Innes, M., & MacLean, S. (2011). The Carolingian world. Cambridge University Press.

Chicago Style (17th ed.) Citation

Costambeys, Marios, Matthew Innes, and Simon MacLean. The Carolingian World. Cambridge ; New York: Cambridge University Press, 2011.

MLA (8th ed.) Citation

Costambeys, Marios, et al. The Carolingian World. Cambridge University Press, 2011.