SINGH, G. Standard Hand Book of Civil Engineering. A.K. Jain.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSINGH, Gurcharan. Standard Hand Book of Civil Engineering. A.K. Jain.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSINGH, Gurcharan. Standard Hand Book of Civil Engineering. A.K. Jain.
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