APA (7th ed.) Citation

Isayama, H., & Title. (2012). Attack on Titan: Vol. 1. Kondansha Comics.

Chicago Style (17th ed.) Citation

Isayama, Hajime, and Title. Attack on Titan: Vol. 1. New York: Kondansha Comics, 2012.

MLA (9th ed.) Citation

Isayama, Hajime, and Title. Attack on Titan: Vol. 1. Kondansha Comics, 2012.

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