Yi gu yan duan [3 juan] - Li, Ye 1192-1279 (Shanghai gu ji chu ban she, 2002)
"Ju Qing Bao shi ke Zhi bu zu zhai cong shu ben ying yin.". - Each page represents 2 leaves of the original
Keywords: Circle -- Early works to 1800; Mathematics, Chinese -- Early works to 1800