Xu Shirong [Pu tong hua, Yu yin, Zhi shi] = Putonghua, Yuyin, Zhishi / [Xu Shirong]

[Pu tong hua, Yu yin, Zhi shi] = Putonghua, Yuyin, Zhishi / [Xu Shirong] . - [Beijing] : Wenzi gaige chubanshe, 1980 . - 197 p. : il. 19 cm
809.51