当关
Subtitle: Zhongguo yao sai tan mi
By: Xie Zhenyu zhu
Edition: Di 1 ban.
Series: Guo jia jing dian ren wen di li
Publisher: Zhong yuan nong min chu ban she
Published: 2008
Place of publication: Zhengzhou Shi
Language: chi
Number of pages: 304
ISBN-13: 9787807392460
Subjects: Fortification; Great Wall of China (China)
Other titles: Dang guan; Zhongguo yao sai tan mi.