《旧唐书·本纪·卷十九》
应当分出桂州管辖的龚州、象州，容州管辖下的藤州、岩州，让它们都隶属于岭南西道收管。 
宜割桂州管内龚州、象州，容州管内藤州、岩州，并隶岭南西道收管。 
Gongzhou and Xiangzhou, which were under the jurisdiction of Guizhou, and Tengzhou and Yanzhou, which were under the jurisdiction of Rongzhou, should be separated out and placed under the western Lingnan circuit.