(1979). The rise of the Roman Empire. Penguin books.
Lua i Stíl Chicago (17ú heag.)The Rise of the Roman Empire. Suffolk: Penguin books, 1979.
Lua MLA (9ú heag.)The Rise of the Roman Empire. Penguin books, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.