Houghton, J. W. (2014). Tolkien in the new century: Essays in honor of Tom Shippey. McFarland & Company, Inc., Publishers.
Lua i Stíl Chicago (17ú heag.)Houghton, John William. Tolkien in the New Century: Essays in Honor of Tom Shippey. Jefferson, North Carolina: McFarland & Company, Inc., Publishers, 2014.
Lua MLA (9ú heag.)Houghton, John William. Tolkien in the New Century: Essays in Honor of Tom Shippey. McFarland & Company, Inc., Publishers, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.