APA-Zitierstil (7. Ausg.)

Strong, C. F. (1964). The world of the middle ages: From the division of Charlemagne's empire in the ninth century to the Renaissance in the fifteenth century (4. impression.). Univ. of London Press.

Chicago-Zitierstil (17. Ausg.)

Strong, C. F. The World of the Middle Ages: From the Division of Charlemagne's Empire in the Ninth Century to the Renaissance in the Fifteenth Century. 4. impression. London: Univ. of London Press, 1964.

MLA-Zitierstil (9. Ausg.)

Strong, C. F. The World of the Middle Ages: From the Division of Charlemagne's Empire in the Ninth Century to the Renaissance in the Fifteenth Century. 4. impression. Univ. of London Press, 1964.