Chʻŏllima kisu tokpon
Publisher: Chigŏp Tongmaeng Chʻulpʻansa
Published: 1963
Place of publication: [Pʻyŏngyang]
Language: kor
Number of pages: 412
Subjects: Labor productivity
Notes: Preserved, Deacidified, 2012 Cranberry, PA Preservation Technologies LP