Title: Pu tong hua yu yin shi hua
Description: Ben shu zhu yao nei rong bao gua : pu tong hua de xing cheng ; " zhong yuan yin yun " shi pu tong hua yu yin xi tong de li shi yuan tou ; pu tong hua chun yin sheng mu de lai yuan ; pu tong hua juan she sheng mu de lai yuan deng.
Subjects: Chinese language, Phonology, History