APA-Zitierstil (7. Ausg.)

Fried, J. (2017). The Middle Ages (First Harvard University Press paperback edition.). The Belknap Press of Harvard University Press.

Chicago-Zitierstil (17. Ausg.)

Fried, Johannes. The Middle Ages. First Harvard University Press paperback edition. Cambridge, Massachusetts: The Belknap Press of Harvard University Press, 2017.

MLA-Zitierstil (9. Ausg.)

Fried, Johannes. The Middle Ages. First Harvard University Press paperback edition. The Belknap Press of Harvard University Press, 2017.