APA (7th ed.) Citation

Crump, G. C., & Jacob, E. F. The legacy of the Middle Ages. Oxford University Press.

Chicago Style (17th ed.) Citation

Crump, G. C., and E. F. Jacob. The Legacy of the Middle Ages. London: Oxford University Press.

MLA (8th ed.) Citation

Crump, G. C., and E. F. Jacob. The Legacy of the Middle Ages. Oxford University Press.

Warning: These citations may not always be 100% accurate.