Yu, W. (1977). Han'guk kŭndae kyŏngjesa yŏn'gu (Ch'op'an.). Ilchisa.
Chicago Style (17th ed.) CitationYu, Wǒn-dong. Han'guk Kŭndae Kyŏngjesa Yŏn'gu. Ch'op'an. Sŏul: Ilchisa, 1977.
MLA (9th ed.) CitationYu, Wǒn-dong. Han'guk Kŭndae Kyŏngjesa Yŏn'gu. Ch'op'an. Ilchisa, 1977.
Warning: These citations may not always be 100% accurate.