Allan, D. (1997). Oxford placement test: Listening test. Oxford, UK: Oxford University Press.
Trích dẫn kiểu ChicagoAllan, Dave. Oxford Placement Test: Listening Test. Oxford, UK: Oxford University Press, 1997.
MLA citiranjeAllan, Dave. Oxford Placement Test: Listening Test. Oxford, UK: Oxford University Press, 1997.
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