APA (7th ed.) Citation

Library Pass, LLC, Carl , A., & Steven, . C. (2016). Once Upon a Time Machine Volume 1. Dark Horse.

Chicago Style (17th ed.) Citation

Library Pass, LLC, Andrew Carl , and Chris Steven. Once Upon a Time Machine Volume 1. [United States]: Dark Horse, 2016.

MLA (9th ed.) Citation

Library Pass, LLC, et al. Once Upon a Time Machine Volume 1. Dark Horse, 2016.