Hutchinson, T., & Flamm, J. (1997). American hotline intermediate student book. New York: Oxford University Press.
Trích dẫn kiểu ChicagoHutchinson, Tom, và Jacqueline Flamm. American Hotline Intermediate Student Book. New York: Oxford University Press, 1997.
Deismireacht MLAHutchinson, Tom, và Jacqueline Flamm. American Hotline Intermediate Student Book. New York: Oxford University Press, 1997.
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