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Four Inventions in Ancient ChinaISBN: 9787801384928 | Publisher: Dolphin Book | Published on 07/2005 | Series: Science Stories of Ancient China Papermaking;Movable Printing; Magic Compass; Taoist Priest and Gunpowder |
$5.00 |
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Stories of Scientists in Ancient ChinaISBN: 9787801384959 | Publisher: Dolphin Book | Published on 07/2005 | Series: Science Stories of Ancient China Zhang Heng Counted Stars; Zu Chongzhi and the Value of π; Yi Xing Revised Calendars; Traveller Xu Xiake |
$5.00 |
