Beckwith, I. T. (1967). The apocalypse of John: Studies in introduction. Baker.
Lua i Stíl Chicago (17ú heag.)Beckwith, Isbon T. The Apocalypse of John: Studies in Introduction. Grand Rapids: Baker, 1967.
Lua MLA (9ú heag.)Beckwith, Isbon T. The Apocalypse of John: Studies in Introduction. Baker, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.