APA (7th ed.) Citation

Barlow, S., Skidmore, S., & Tunney, A. (2017). Beowulf. Franklin Watts.

Chicago Style (17th ed.) Citation

Barlow, Steve, Steve Skidmore, and Andrew Tunney. Beowulf. London, England: Franklin Watts, 2017.

MLA (9th ed.) Citation

Barlow, Steve, et al. Beowulf. Franklin Watts, 2017.