APA Style

Xiaohua, X., 许晓华, . (2013). 商贸汉语阅读与表达 4 = Reading and Communicating 4 / Shang mao Han yu yue du yu biao da 4 = Reading and Communicating 4 . Beijing: Sinolingua.

MLA Style

Xiaohua, Xu., 许晓华, . "商贸汉语阅读与表达 4 = Reading and Communicating 4 / Shang mao Han yu yue du yu biao da 4 = Reading and Communicating 4". Beijing: Sinolingua, 2013. Text.