Kim, W. (1971). Kugŏ ŭmun ch'egye ŭi yŏn'gu (Ch'op'an.). Ilchogak.
Chicago Style (17th ed.) CitationKim, Wan-jin. Kugŏ ŭmun Ch'egye ŭi Yŏn'gu. Ch'op'an. Sŏul: Ilchogak, 1971.
MLA (9th ed.) CitationKim, Wan-jin. Kugŏ ŭmun Ch'egye ŭi Yŏn'gu. Ch'op'an. Ilchogak, 1971.
Warning: These citations may not always be 100% accurate.