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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNational Research Council (U.S.). Transportation Research Board और National Research Council (U.S.). Transportation Research Board. Meeting. Geomaterials 2003. Washington, D.C: Transportation Research Board, 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNational Research Council (U.S.). Transportation Research Board और National Research Council (U.S.). Transportation Research Board. Meeting. Geomaterials 2003. Transportation Research Board, 2003.
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