Carr J. C. Jane Comyns & Eales F. Frances. (2001). Cutting EDGE. Upper Intermediate: Workbook with key (5th ed.). Edinburgh, Longman, 2001.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCarr J. C. Jane Comyns और Eales F. Frances. Cutting EDGE. Upper Intermediate: Workbook with Key. 5th ed. Edinburgh, Longman, 2001, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCarr J. C. Jane Comyns और Eales F. Frances. Cutting EDGE. Upper Intermediate: Workbook with Key. 5th ed. Edinburgh, Longman, 2001, 2001.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.