Butterfield, A. (2009). The familiar enemy: Chaucer, language, and nation in the Hundred Years War. Oxford University Press.
Chicago-referens (17:e uppl.)Butterfield, Ardis. The Familiar Enemy: Chaucer, Language, and Nation in the Hundred Years War. Oxford ; New York: Oxford University Press, 2009.
MLA-referens (9:e uppl.)Butterfield, Ardis. The Familiar Enemy: Chaucer, Language, and Nation in the Hundred Years War. Oxford University Press, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.