APA (7th ed.) Citation

Tierney, B. (1999). The middle ages: Sources of medieval history. McGraw - Hill.

Chicago Style (17th ed.) Citation

Tierney, Brian. The Middle Ages: Sources of Medieval History. New York: McGraw - Hill, 1999.

MLA (9th ed.) Citation

Tierney, Brian. The Middle Ages: Sources of Medieval History. McGraw - Hill, 1999.