SanGong Chuangzi Nu

Source

"Chinese Siege Warfare: Mechanical Artillery & Siege Weapons of Antiquity" by Liang Jieming, ISBN 981-05-5380-3

http://authors.history-forum.com/liang_jieming/chinesesiegewarfare/images/czn-sg1.jpg archive copy at the Wayback Machine

Licensed

本文件采用知识共享署名 1.0 通用许可协议授权。

您可以自由地：

• 共享 – 复制、发行并传播本作品
• 修改 – 改编作品

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• 署名 – 您必须对作品进行署名，提供授权条款的链接，并说明是否对原始内容进行了更改。您可以用任何合理的方式来署名，但不得以任何方式表明许可人认可您或您的使用。

https://creativecommons.org/licenses/by/1.0CC BY 1.0 Creative Commons Attribution 1.0 truetrue

The photographs are part of my book. You're welcome to use them on Wikipedia so long as you list my book "Chinese Siege Warfare: Mechanical Artillery & Siege Weapons of Antiquity" by Liang Jieming (ISBN 981-05-5380-3) as the source.

I hope that helps.

Cheers, Leong Kit Meng (Liang Jieming) <liang_jieming@history-forum.com>