Chʻŏllima sidae saramdŭl
Publisher: Chosŏn Nodongdang Chʻulpʻansa
Published: 1961
Place of publication: [Pʻyŏngyang]
Language: kor
Subjects: Labor productivity
Notes: Vols.- published by Chosŏn Nodongdang Chʻulpʻansa (v. with Chosŏn Yŏsŏngsa); v.- by Sŏndongwŏnsa.

Preserved, Deacidified, 2012 Cranberry, PA Preservation Technologies LP