Williams, A. The theology of the "Comedy": A.N. Williams. The Cambridge companion to Dante.(2007).
Lua i Stíl Chicago (17ú heag.)Williams, A.N. "The Theology of the "Comedy": A.N. Williams." The Cambridge Companion to Dante.(2007) .
Lua MLA (8ú heag.)Williams, A.N. "The Theology of the "Comedy": A.N. Williams." The Cambridge Companion to Dante.(2007), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.