Yi, Y., & Ch'oe, C. (1999). Mullyubi chŏlgam ŭl wihan muyŏk ŏpch'e ŭi chŏngbohwa chŏllyak (1 p'an 1 swae.). Chimmundang.
Chicago Style (17th ed.) CitationYi, Yŏng-su, and Chong-Min Ch'oe. Mullyubi Chŏlgam ŭl Wihan Muyŏk ŏpch'e ŭi Chŏngbohwa Chŏllyak. 1 p'an 1 swae. Sŏul: Chimmundang, 1999.
MLA (9th ed.) CitationYi, Yŏng-su, and Chong-Min Ch'oe. Mullyubi Chŏlgam ŭl Wihan Muyŏk ŏpch'e ŭi Chŏngbohwa Chŏllyak. 1 p'an 1 swae. Chimmundang, 1999.
Warning: These citations may not always be 100% accurate.