O, H. (1993). Yusik sasang yŏn'gu: Sinp'yŏn (Chaep'an.). Yuga Sasangsa.
Chicago Style (17th ed.) CitationO, Hyŏng-gŭn. Yusik Sasang Yŏn'gu: Sinp'yŏn. Chaep'an. Sŏul: Yuga Sasangsa, 1993.
MLA (9th ed.) CitationO, Hyŏng-gŭn. Yusik Sasang Yŏn'gu: Sinp'yŏn. Chaep'an. Yuga Sasangsa, 1993.
Warning: These citations may not always be 100% accurate.