Bowler, B., & Parminter, S. (1992). Headway, Pre-Intermediate: Pronunciation. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoBowler, Bill, và Sue Parminter. Headway, Pre-Intermediate: Pronunciation. Oxford: Oxford University Press, 1992.
MLA citiranjeBowler, Bill, và Sue Parminter. Headway, Pre-Intermediate: Pronunciation. Oxford: Oxford University Press, 1992.
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