Cita APA (7a ed.)

Fried, J. (2015). The Middle Ages (2nd printing.). Belknap Press of Harvard University Press.

Cita Chicago Style (17a ed.)

Fried, Johannes. The Middle Ages. 2nd printing. Cambridge (Massachusetts) [etc.]: Belknap Press of Harvard University Press, 2015.

Cita MLA (9a ed.)

Fried, Johannes. The Middle Ages. 2nd printing. Belknap Press of Harvard University Press, 2015.