MLA

Bellassen, Joël, 张朋朋, and Christian Artuso. A Key to Chinese Speech and Writing. Beijing: Sinolingua, 1997.

APA

Bellassen, J., 张朋朋, 张., & Artuso, C. (1997). A key to Chinese speech and writing. Beijing: Sinolingua.

Chicago

Bellassen, Joël, and 张朋朋. A Key to Chinese Speech and Writing. Translated by Christian Artuso. Beijing: Sinolingua, 1997.