Cita APA (7a ed.)

Butterfield, A. (2009). The familiar enemy: Chaucer, language, and nation in the Hundred Years War. Oxford University Press.

Cita Chicago Style (17a ed.)

Butterfield, Ardis. The Familiar Enemy: Chaucer, Language, and Nation in the Hundred Years War. Oxford ; New York: Oxford University Press, 2009.

Cita MLA (9a ed.)

Butterfield, Ardis. The Familiar Enemy: Chaucer, Language, and Nation in the Hundred Years War. Oxford University Press, 2009.