Yu, S., & Yi, C. (2001). Kugyŏk Chingbirok (Ch'op'an.). Sŏae Sŏnsaeng Kinyŏm Saŏphoe.
Chicago Style (17th ed.) CitationYu, Sŏng-nyong, and Chae-ho Yi. Kugyŏk Chingbirok. Ch'op'an. Sŏul: Sŏae Sŏnsaeng Kinyŏm Saŏphoe, 2001.
MLA (9th ed.) CitationYu, Sŏng-nyong, and Chae-ho Yi. Kugyŏk Chingbirok. Ch'op'an. Sŏae Sŏnsaeng Kinyŏm Saŏphoe, 2001.
Warning: These citations may not always be 100% accurate.