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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEuropean Commission. Telematics for Libraries. Luxembourg: Office for Official Publications of the European Communities, 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEuropean Commission. Telematics for Libraries. Office for Official Publications of the European Communities, 1998.
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