Pak, Yong-gu, 1923- Kyeryongsan / Pak Yong-gu chŏ. - Chʻopʻan. - Sŏul : Sudo Munhwasa, 1964-1965. - 2 v. : ill. ; 19 cm. LCCN: k 67000039 LC Class. No.: PL992.62.Y58 / K9