Hanʼguk ŭi kwahak munhwajae
By: Chŏn Sang-un chiŭm.
Edition: Chʻŏtpʻan
Publisher: Chŏngŭmsa
Published: 1987
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 153
Subjects: Science -- Korea -- History; Technology -- Korea -- History