Lua APA (7ú heag.)

Smith, R. W. (1997). Purgatorio: From "The Divine Comedy". Belwin-Mills Publishing.

Lua i Stíl Chicago (17ú heag.)

Smith, Robert W. Purgatorio: From "The Divine Comedy". Miami, Fla: Belwin-Mills Publishing, 1997.

Lua MLA (9ú heag.)

Smith, Robert W. Purgatorio: From "The Divine Comedy". Belwin-Mills Publishing, 1997.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.