Lua APA (7ú heag.)

Heer, F. (1962). The medieval world: Europe. New American Library.

Lua i Stíl Chicago (17ú heag.)

Heer, Friedrich. The Medieval World: Europe. New York: New American Library, 1962.

Lua MLA (9ú heag.)

Heer, Friedrich. The Medieval World: Europe. New American Library, 1962.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.