Mann R. Richard. (2005). First Certificate Expert: Student's Resource Book with key. Harlow, Longman, 2005.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMann R. Richard. First Certificate Expert: Student's Resource Book with Key. Harlow, Longman, 2005, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMann R. Richard. First Certificate Expert: Student's Resource Book with Key. Harlow, Longman, 2005, 2005.
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