Ludlum, R. (1984). The Aquitaine Progression. Arrow Books.
Lua i Stíl Chicago (17ú heag.)Ludlum, Robert. The Aquitaine Progression. London: Arrow Books, 1984.
Lua MLA (9ú heag.)Ludlum, Robert. The Aquitaine Progression. Arrow Books, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.