Kuodi Zhi

Kuodi Zhi, usually translated as Comprehensive Gazetteer or Description Encompassing the Earth, is an early Tang dynasty survey of Tang China's geography and administrative divisions. It was compiled by Li Tai, Prince of Wei, a son of Emperor Taizong, with the help of imperial scholars including Xiao Deyan. It was completed in 641/642 AD.
The original work comprised 555 volumes, with 550 volumes of text and 5 volumes of preface, but most have been lost. During the Qing dynasty, scholar Sun Xingyan published the 8-volume book Kuodi Zhi jiben, a collection of the surviving fragments. In 1974, Wang Hui published a revised and expanded version of Sun's work entitled Kuodi Zhi xinji. In 1980, He Cijun published Kuodi Zhi jijiao.