Chʻŏllima kongjang saramdŭl
By: Yun Se-jung chŏ
Publisher: Chigŏp Tongmaeng Chʻulpʻansa
Published: 1965
Place of publication: Pʻyŏngyang
Language: kor
Number of pages: 281
Subjects: Labor productivity
Notes: Preserved, Deacidified, 2012 Cranberry, PA Preservation Technologies LP