Hanʼguk 21-segi
By: [pʻyŏnja Yi Hong-gu oe].
Contributors: Yi, Hong-gu, 1934-
Edition: Chʻopʻan
Publisher: Chosŏn Ilbosa
Published: 1987
Place of publication: Sŏul Tʻŭkpyŏlsi
Language: kor
Number of pages: 328
Subjects: Social prediction -- Korea (South); Twenty-first century -- Forecasts; Korea (South) -- Social conditions