Rachel Redford. (2009). Oxford English: An International Approach Students' Book 1book 1 (UK ed.). "Oxford University Press, USA".
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRachel Redford. Oxford English: An International Approach Students' Book 1book 1. UK ed. "Oxford University Press, USA", 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRachel Redford. Oxford English: An International Approach Students' Book 1book 1. UK ed. "Oxford University Press, USA", 2009.
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