APA (7th ed.) Citation

Crocker, R. L., & Hiley, D. (1990). The early Middle Ages to 1300 ([2nd ed.].). Oxford University Press.

Chicago Style (17th ed.) Citation

Crocker, Richard L., and David Hiley. The Early Middle Ages to 1300. [2nd ed.]. Oxford [etc.]: Oxford University Press, 1990.

MLA (9th ed.) Citation

Crocker, Richard L., and David Hiley. The Early Middle Ages to 1300. [2nd ed.]. Oxford University Press, 1990.