Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.