Soars, L., & Soars, J. (1998). New headway english course: Intermediate workbook. New York: Oxford University Press.
Trích dẫn kiểu ChicagoSoars, Liz, và John Soars. New Headway English Course: Intermediate Workbook. New York: Oxford University Press, 1998.
Deismireacht MLASoars, Liz, và John Soars. New Headway English Course: Intermediate Workbook. New York: Oxford University Press, 1998.
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