Soars, L., & Soars, J. (2003). New Headway: Intermediate workbook with key (3rd ed.). Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSoars, Liz, और John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford: Oxford University Press, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSoars, Liz, और John Soars. New Headway: Intermediate Workbook with Key. 3rd ed. Oxford University Press, 2003.
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