APA (7th ed.) Citation

Mignola, M. (2019). Hellboy: 25 years of covers: 25 years of covers. Dark Horse Comics, LLC..

Chicago Style (17th ed.) Citation

Mignola, Mike. Hellboy: 25 Years of Covers: 25 Years of Covers. Cleveland: Dark Horse Comics, LLC., 2019.

MLA (8th ed.) Citation

Mignola, Mike. Hellboy: 25 Years of Covers: 25 Years of Covers. Dark Horse Comics, LLC., 2019.

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