APA (7th ed.) Citation

Culbard, I. N. J., & Lovecraft, H. P. (2012). At the mountains of madness: A graphic novel. Sterling.

Chicago Style (17th ed.) Citation

Culbard, I. N. J., and H. P. Lovecraft. At the Mountains of Madness: A Graphic Novel. New York: Sterling, 2012.

MLA (9th ed.) Citation

Culbard, I. N. J., and H. P. Lovecraft. At the Mountains of Madness: A Graphic Novel. Sterling, 2012.