APA Style

Yamin, M., Xinying, L. (2020). Easy Steps to Chinese for Adults Textbook 4 2nd Edition (2nd edition). Beijing: Beijing Language and Culture University Press.

MLA Style

Yamin, Ma., Xinying, Li. "Easy Steps to Chinese for Adults Textbook 4 2nd Edition". 2nd edition Beijing: Beijing Language and Culture University Press, 2020. Textbook.