Kwahak kwa sago
By: So Hŭng-nyŏl chŏ
Edition: Chʻopʻan
Publisher: Kyŏngmunsa
Published: 1983
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 281
Subjects: Science; Philosophy
Notes: Includes bibliographical references.