Stories of Scientists in Ancient China: Zhang Heng Counted Stars, Zu Chongzhi and the Value of Pi, Yi Xing Revised Calendars, Traveller Xu Siake (Science Stories of Ancient China)
Add this copy of Stories of Scientists in Ancient China: Zhang Heng to cart. $28.59, fair condition, Sold by ThriftBooks-Atlanta rated 5.0 out of 5 stars, ships from Austell, GA, UNITED STATES, published 1996 by Dolphin Books.
