Ladefoged, P. (2001). A course in phonetics (4th ed.). Fort Worth: Harcourt College Publishers.
Trích dẫn kiểu ChicagoLadefoged, Peter. A Course in Phonetics. 4th ed. Fort Worth: Harcourt College Publishers, 2001.
Deismireacht MLALadefoged, Peter. A Course in Phonetics. 4th ed. Fort Worth: Harcourt College Publishers, 2001.
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