Richards, J. C. New Interchange: English for international communication. Student's book 2A.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRichards, Jack C. New Interchange: English for International Communication. Student's Book 2A.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRichards, Jack C. New Interchange: English for International Communication. Student's Book 2A.
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