I, D. i. (2007). Yu Sŏng-nyong: Sŏltŭk kwa t'onghap ŭi lidŏ (Ch'op'an.). Yŏksa ŭi ach'im.
Chicago Style (17th ed.) CitationI, Deog il. Yu Sŏng-nyong: Sŏltŭk Kwa T'onghap ŭi Lidŏ. Ch'op'an. Sŏul: Yŏksa ŭi ach'im, 2007.
MLA (9th ed.) CitationI, Deog il. Yu Sŏng-nyong: Sŏltŭk Kwa T'onghap ŭi Lidŏ. Ch'op'an. Yŏksa ŭi ach'im, 2007.
Warning: These citations may not always be 100% accurate.