Unicode 5.2
Character
Pinyin OU1 Jyutping au1
Cihai, Zhonghua Bookstore, 1983 726.206

Unicode 12.1
Character
Pinyin ōu Jyutping au1
Cihai, Zhonghua Bookstore, 1983 726.206

Records 1 - 2 of 2 retrieved in 21 ms