Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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