APA (7th ed.) Citation

Library Pass, LLC, & Mignola, M. (2019). Hellboy: 25 Years of Covers. Dark Horse.

Chicago Style (17th ed.) Citation

Library Pass, LLC, and Mike Mignola. Hellboy: 25 Years of Covers. [United States]: Dark Horse, 2019.

MLA (9th ed.) Citation

Library Pass, LLC, and Mike Mignola. Hellboy: 25 Years of Covers. Dark Horse, 2019.

Warning: These citations may not always be 100% accurate.