APA (7th ed.) Citation

Godman, P., & Collins, R. (1990). Charlemagne's heir: New perspectives on the reign of Louis the Pious (814-840). Clarendon Press.

Chicago Style (17th ed.) Citation

Godman, Peter, and Roger Collins. Charlemagne's Heir: New Perspectives on the Reign of Louis the Pious (814-840). Oxford [England] ; New York: Clarendon Press, 1990.

MLA (9th ed.) Citation

Godman, Peter, and Roger Collins. Charlemagne's Heir: New Perspectives on the Reign of Louis the Pious (814-840). Clarendon Press, 1990.