TY  - BOOK
TI  - Lịch khoa tứ lục 歷科四錄
AN  - Columbia University Libraries
N1  - Dated [date of publication not identified]
SP  - 3
UR  - https://www.viet-dien.com/t/han-nom-d8-0n1h-4a98/3
Y2  - 2026-09-06
ER  -