APA (7th ed.) Citation

Abnett, D., Abnett, N., & Wallis, J. (2000). Hammers of Ulric. Black Library.

Chicago Style (17th ed.) Citation

Abnett, Dan, Nik Abnett, and James Wallis. Hammers of Ulric. Nottingham: Black Library, 2000.

MLA (9th ed.) Citation

Abnett, Dan, et al. Hammers of Ulric. Black Library, 2000.