Chŏngchʻihak sajŏn
By: pʻyŏnjip taepʻyo Min Pyŏng-tʻae, Pak Il-kyŏng, Sin Ki-sŏk, Yun Se-chʻang, Yi Yong-hŭi
Published: 1962
Place of publication: [Place of publication not identified]
Language: kor
Number of pages: 970