Hanʼguk ŭi kodae kwahak
Subtitle: chʻŏngdonggi esŏ chʻamsŏngdae kkaji
By: Kim San-un chŏ
Series: Tʻamgu sinsŏ -- 54; Tʻamgu sinsŏ -- 54.
Publisher: Tʻamgudang
Published: 1972
Place of publication: [Sŏul]
Language: kor
Number of pages: 147
Subjects: Science; History