Kyŏngjehak immun
Subtitle: hyŏndaejŏk choryurŭl chʻajasŏ
By: Yi Hyŏng-sun chŏ.
Publisher: Pagyŏngsa
Published: 1981
Place of publication: Sŏul Tʻy̆kpyŏlsi
Language: kor
Number of pages: 628