Yi, K. (1963). Kugŏ p'yogipŏp ŭi yŏksajŏk yŏn'gu. Han'guk Yŏn'guwŏn.
Chicago Style (17th ed.) CitationYi, Ki-mun. Kugŏ P'yogipŏp ŭi Yŏksajŏk Yŏn'gu. Sŏul: Han'guk Yŏn'guwŏn, 1963.
MLA (9th ed.) CitationYi, Ki-mun. Kugŏ P'yogipŏp ŭi Yŏksajŏk Yŏn'gu. Han'guk Yŏn'guwŏn, 1963.
Warning: These citations may not always be 100% accurate.