Shippey. Beowulf and Other Old English Poems. University of Pennsylvania Press.
Lua i Stíl Chicago (17ú heag.)Shippey. Beowulf and Other Old English Poems. University of Pennsylvania Press.
Lua MLA (9ú heag.)Shippey. Beowulf and Other Old English Poems. University of Pennsylvania Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.