Title: Uri kŭl i kŏrŏ on kil : <Chungguk Chosŏn Ŏmun> chʻanggan 20-tol kinyŏm tosŏ /
Authors: Chŏn, Pyŏng-sŏn, 1947-; Chʻoe, Chʻang-bŏm, 1938-; Yi Ŏk-chʻŏl, 1928-
Publisher: Minjok Chʻulpʻansa,
Year: 1997
Subjects: Korean language History.; Korean language China.