Kyegŭp iron kwa kyechʻŭng iron
By: Han Sang-jin pʻyŏn
Edition: Chʻopʻan
Series: Munje wa sigak -- 1
Publisher: Munhak kwa Chisŏngsa
Published: 1984
Place of publication: Sŏul
Language: kor
Number of pages: 171