APA (7th ed.) Citation

Isayama, H., & Drzka, S. (2012). Attack on Titan. Kodansha Comics.

Chicago Style (17th ed.) Citation

Isayama, Hajime, and Sheldon Drzka. Attack on Titan. New York, N.Y.: Kodansha Comics, 2012.

MLA (8th ed.) Citation

Isayama, Hajime, and Sheldon Drzka. Attack on Titan. Kodansha Comics, 2012.

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