Cita APA (7a ed.)

Williamson, C., & Shippey, T. A. (2011). Beowulf and other Old English poems. University of Pennsylvania Press.

Cita Chicago Style (17a ed.)

Williamson, Craig, y T. A. Shippey. Beowulf and Other Old English Poems. Philadelphia: University of Pennsylvania Press, 2011.

Cita MLA (8a ed.)

Williamson, Craig, y T. A. Shippey. Beowulf and Other Old English Poems. University of Pennsylvania Press, 2011.