Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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