Não informado. (2016). Civil Engineering ASCE. American Society of Civil Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Civil Engineering ASCE. New York: American Society of Civil Engineers, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Civil Engineering ASCE. American Society of Civil Engineers, 2016.
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