1. Brunner, Karl. 1965. Altenglische Grammatik nach der Angelsachsischen Grammatik von Eduard Sievers. 3rded. Tubingen: Niemeyer.
2. Campbell, A. 1959. Old English Grammar. Oxford: Clarendon.
3. Chambers, R. W. 1959. Beowulf: An Introduction to the Study of the Poem. 3rded., with a supplement by C. L. Wrenn. Cambridge: Cambridge UP.
4. Clark, George. 1990. Beowulf. Boston: Twayne.
5. Clark, George. 1992. "Beowulf: The Last Word". Old English and New: Studies in Language and Literature in Honor of Frederic G. Cassidy. Ed. Joan H. Hall, et al. New York: Garland. 15-30.