APA (7th ed.) Citation

Library Pass, LLC, Grant, S., & Various. (2016). X Omnibus vol 2. Dark Horse.

Chicago Style (17th ed.) Citation

Library Pass, LLC, Steve Grant, and Various. X Omnibus Vol 2. [United States]: Dark Horse, 2016.

MLA (9th ed.) Citation

Library Pass, LLC, et al. X Omnibus Vol 2. Dark Horse, 2016.