Alan Maley. (1987). Listening Upper - Intermediate. Oxford University Press.
Trích dẫn kiểu ChicagoAlan Maley. Listening Upper - Intermediate. Oxford University Press, 1987.
MLA引文Alan Maley. Listening Upper - Intermediate. Oxford University Press, 1987.
警告：这些引文格式不一定是100％准确.