Yu, Shichang. Buyi yu yu fa yan jiu / Yu Shichang zhu ; Zhongguo ke xue yuan yu yan yan jiu suo bian ji. - Beijing : Ke xue chu ban she, 1956. - 1, 1, 101 p. ; 26 cm. - Yu yan xue zhuan kan . LCCN: c 59002526 Subjects--Topical Terms: Bouyei language. LC Class. No.: PL4251.C495 / P88