Chʻong ŭl chwin sonyŏndŭl
Subtitle: kŭrim chʻaek
By: Kim Yong-un chiŭm ; Yi Yŏng-sŏn kŭrim.
Publisher: Kŭmsŏng Chʻŏngnyŏn Chʻulpʻansa
Published: 1982
Place of publication: [Pʻyŏngyang]
Language: kor
Number of pages: 112