Hyŏksin kugŏhak sa
By: Yi Sung-nyŏng chŏ
Series: Pagyŏng munʼgo -- 101; Pagyŏng munʼgo -- 101.
Publisher: Pagyŏngsa
Published: 1976
Place of publication: Sŏul
Language: kor
Number of pages: 217
Subjects: Korean language; History