Irobŏrin chang
Subtitle: Hanʼguk kwahak ŭi yusan ŭl tŏdŭmŏ
By: kŭl Chŏn Sang-un ; kŭrim Yi Sun-jae
Contributors: Yi, Sun-jae
Edition: Chʻopʻan
Series: Hyŏndae kwahak sinsŏ -- 26; Hyŏndae kwahak sinsŏ -- 26.
Publisher: Chŏnpʻa Kwahaksa
Published: 1974
Place of publication: Sŏul
Language: kor
Number of pages: 252
Subjects: Science; History