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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIndia. Centre for Plastics in the Environment. Plastics for Environment and Sustainable Development. ICPE, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIndia. Centre for Plastics in the Environment. Plastics for Environment and Sustainable Development. ICPE, 2003.
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