Li 2009, hlm. 6. The date in the Chinese calendar is the 13th day of the 3rd month of the 1st year of Xuantong (宣统元年三月十三日), converted to a date in the Gregorian calendar on this site. Li, Zhizhong 李致忠 (chief editor) (2009), Zhongguo guojia tushuguan guanshi 中国国家图书馆馆史 [History of the National Library of China] (dalam bahasa Tionghoa), Beijing: NLC Press (国家图书馆出版社), ISBN978-7-5013-4070-5.
web.archive.org
"馆藏实体资源". National Library of China. 2017. Diarsipkan dari versi asli tanggal 2017-02-27. Diakses tanggal 8 September 2017.