APA (7th ed.) Citation

Mignola, M., Gianni, G., & Stewart, D. (2017). Hellboy (First edition.). Dark Horse Books.

Chicago Style (17th ed.) Citation

Mignola, Mike, Gary Gianni, and Dave Stewart. Hellboy. First edition. Milwaukie, OR: Dark Horse Books, 2017.

MLA (8th ed.) Citation

Mignola, Mike, et al. Hellboy. First edition. Dark Horse Books, 2017.

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