Perowne, S. (1967). The end of the Roman world. Crowell.
Lua i Stíl Chicago (17ú heag.)Perowne, Stewart. The End of the Roman World. New York: Crowell, 1967.
Lua MLA (9ú heag.)Perowne, Stewart. The End of the Roman World. Crowell, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.