2004 - The Hall of Heavenly Records Korean Astronomical Instruments and Clocks 13801780 (Paperback) ISBN-13: 9780521616980 ISBN-10: 0521616980 Genre: Science & Math ? 1986 - The Hall of Heavenly Records Korean Astronomical Instruments and Clocks 13801780 No 25 [Monograph Antiquarian Horological Society] (Hardcover) ISBN-13: 9780521303682 ISBN-10: 0521303680 Genre: Science & Math ? |