'85 unsuŏp tʻonggye chosa
Subtitle: charyo chʻŏri kaebal pogosŏ
Series: Charyo chʻŏri kyoyugyong -- 87-1
Publisher: Kyŏngje Kihoegwŏn Chosa Tʻonggyeguk
Published: 1987
Place of publication: [Seoul]
Language: kor
Number of pages: 574
Other titles: Pʻalsibo unsuŏp tʻonggye chosa