HarperCollins. (1992). BBC English dictionary. London: BBC English : HarperCollins.
Trích dẫn kiểu ChicagoHarperCollins. BBC English Dictionary. London: BBC English : HarperCollins, 1992.
MLA citiranjeHarperCollins. BBC English Dictionary. London: BBC English : HarperCollins, 1992.
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