APA (7th ed.) Citation

Yi, K., & Mun, C. y. (2013). Why? Yesulgadŭl (1-p'an.). Yerimdang.

Chicago Style (17th ed.) Citation

Yi, Kŭn, and Cheol yeong Mun. Why? Yesulgadŭl. 1-p'an. Sŏul: Yerimdang, 2013.

MLA (9th ed.) Citation

Yi, Kŭn, and Cheol yeong Mun. Why? Yesulgadŭl. 1-p'an. Yerimdang, 2013.