4-wŏl ŭi sŏngjwa
Subtitle: changpʻyŏn sosŏl
By: Chin U-sŏk ; [pʻyŏnjip Pak Tʻae-su]
Contributors: Pak, Tʻae-su
Publisher: Munye Chʻulpʻansa
Published: 1987
Place of publication: [Pʻyŏngyang]
Language: kor
Number of pages: 607
Other titles: Sawŏl ŭi sŏngjwa