I, I. s. (2011). Kugŏhak kaesŏl (3-p'an.). Hagyŏnsa.
Chicago Style (17th ed.) CitationI, Ig seob. Kugŏhak Kaesŏl. 3-p'an. Sŏul: Hagyŏnsa, 2011.
MLA (9th ed.) CitationI, Ig seob. Kugŏhak Kaesŏl. 3-p'an. Hagyŏnsa, 2011.
Warning: These citations may not always be 100% accurate.