Cita APA

 Understanding second language acquisition. (2023).  Understanding second language acquisition.  Routledge.

Citación estilo Chicago

 Understanding second language acquisition.  Understanding Second Language Acquisition.  Routledge, 2023.

Cita MLA

 Understanding second language acquisition.  Understanding Second Language Acquisition.  Routledge, 2023.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.