Luó mǎ zì mǔ
Roman letters
Roman alphabet
Guó yǔ luó mǎ zì
"Gwoyeu Romatzyh" romanization system for Chinese devised by Zhao Yuanren in 1926
Guó yǔ Luó mǎ zì
Gwoyeu Romatzyh, a romanization system for Chinese devised by Y.R. Chao and others in 1925-26