Yi, C. (2004). 21 segi Han'guk ŭi munhwa hyŏngmyŏng (1 p'an.). Sallim.
Chicago Style (17th ed.) CitationYi, Chŏng-dŏk. 21 Segi Han'guk ŭi Munhwa Hyŏngmyŏng. 1 p'an. Sŏul: Sallim, 2004.
MLA (9th ed.) CitationYi, Chŏng-dŏk. 21 Segi Han'guk ŭi Munhwa Hyŏngmyŏng. 1 p'an. Sallim, 2004.
Warning: These citations may not always be 100% accurate.