Ward, G. (2002). Cities of God. Routledge.
Lua i Stíl Chicago (17ú heag.)Ward, Graham. Cities of God. London ; New York: Routledge, 2002.
Lua MLA (9ú heag.)Ward, Graham. Cities of God. Routledge, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.