APA (7th ed.) Citation

Qiao, Y. (2015). Walls and towers: Systems of defense in ancient China. CN Times books.

Chicago Style (17th ed.) Citation

Qiao, Yun. Walls and Towers: Systems of Defense in Ancient China. New York: CN Times books, 2015.

MLA (9th ed.) Citation

Qiao, Yun. Walls and Towers: Systems of Defense in Ancient China. CN Times books, 2015.