中华书局本《元和郡县图志》卷三七“昭州”云:“武德四年,于县置乐州,贞观八年改乐州为昭州,取境内昭潭为名。”其“校勘记”称:“《考证》官本按云:‘昭潭,《旧唐书》作“昭冈潭”’。按乐史昭潭下引《湖南记》云:“郡北有昭冈,潭只在江中,盖因冈以为名’。详其文义‘冈’字宜断句,‘潭’字属下,刘(日句)误属上读,宜以此志为是。” Zhonghua Book Company The “yuan and the county map” Volume 37 “Zhaozhou” cloud: “Takenori four years, in the county home Lezhou, Zhenguan eight years to change the state for the state of Zhaozhou, take territory Zhaotan name.” The “collation in mind,” said: “” Textual Research “official according to the cloud: ’Zhaotan,’ old Tang book ’as’ Zhagang Tan ’.’ Gang, Tam only in the river, Gein Gang that name. Detailed text ’Gang’ word should be sentenced, ’Tam’ under the word, Liu (Japanese) is a mistake to read, should take this aspiration. ”