Mŏtchin taehwa ttwiŏnan hwasul
By: An To-sŏp chŏ
Edition: Chʻopʻan
Publisher: Chʻŏngnyŏn Munhwa
Published: 1989
Place of publication: Sŏul-si
Language: kor
Number of pages: 302
Subjects: Conversation; Clean speech