APA (7th ed.) Citation

Yang Xiagui. (2007). The unseen Great Wall. Foreign Languages Press.

Chicago Style (17th ed.) Citation

Yang Xiagui. The Unseen Great Wall. Beijing: Foreign Languages Press, 2007.

MLA (9th ed.) Citation

Yang Xiagui. The Unseen Great Wall. Foreign Languages Press, 2007.

Warning: These citations may not always be 100% accurate.