Harris, R. (2006). Imperium: A novel of Ancient Rome. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Harris, Robert. Imperium: A Novel of Ancient Rome. New York, NY: Simon & Schuster, 2006.
Lua MLA (9ú heag.)Harris, Robert. Imperium: A Novel of Ancient Rome. Simon & Schuster, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.