APA (7th ed.) Citation

British Library, Kiernan, K. S., & Prescott, A. (2004). Electronic Beowulf 2.0. British Library.

Chicago Style (17th ed.) Citation

British Library, Kevin S. Kiernan, and Andrew Prescott. Electronic Beowulf 2.0. [London]: British Library, 2004.

MLA (9th ed.) Citation

British Library, et al. Electronic Beowulf 2.0. British Library, 2004.