Loring, J. (2010). Joseph Urban. Abrams.
Lua i Stíl Chicago (17ú heag.)Loring, John. Joseph Urban. New York: Abrams, 2010.
Lua MLA (9ú heag.)Loring, John. Joseph Urban. Abrams, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.