The Acquisition of Chinese as a Second Language Pronunciation
  MLA
  Chunsheng Yang. The Acquisition of Chinese As a Second Language Pronunciation. Springer Singapore, 2021.
  APA
  Chunsheng Yang, C. Yang. (2021). The Acquisition of Chinese as a Second Language Pronunciation. Springer Singapore.
  Chicago
  Chunsheng Yang The Acquisition of Chinese As a Second Language Pronunciation. : Springer Singapore, 2021.