Kajok, sayu chaesan mit kukka ŭi kiwŏn
Subtitle: L.H. Morŭgan ŭi che yŏnʼgu wa kwallyŏn hayŏ
By: E. Pʻŭ. Enggelsŭ.
Publisher: Chosŏn Nodongdang Chʻlpʻansa
Published: 1960
Place of publication: Pʻyŏngyang-si
Language: kor
Number of pages: 228