Peri, H. (1955). The original plan of the Divine Comedy.
Lua i Stíl Chicago (17ú heag.)Peri, Hiram. The Original Plan of the Divine Comedy. 1955.
Lua MLA (8ú heag.)Peri, Hiram. The Original Plan of the Divine Comedy. 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.