Citazione Stile APA (7a Edizione)

Hallam, H. (1900). History of Europe during the middle ages (Rev. ed.). Collier.

Citazione stile Chigago Style (17a edizione)

Hallam, Henry. History of Europe During the Middle Ages. Rev. ed. New York: Collier, 1900.

Citatione MLA (9a ed.)

Hallam, Henry. History of Europe During the Middle Ages. Rev. ed. Collier, 1900.