Soars, L., Soars, J., & Devoy, J. (1998). New headway English course. Upper-intermediate. Workbook with key. Oxford: Oxford university press.
Chicago-стиль цитированияSoars, Liz, John Soars, and Jo Devoy. New Headway English Course. Upper-intermediate. Workbook With Key. Oxford: Oxford university press, 1998.
MLA-цитированиеSoars, Liz, John Soars, and Jo Devoy. New Headway English Course. Upper-intermediate. Workbook With Key. Oxford: Oxford university press, 1998.
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