American Society of Civil Engineers. Dept. of Professional Activities. (1971). Engineering Issues. American Society of Civil Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAmerican Society of Civil Engineers. Dept. of Professional Activities. Engineering Issues. New York: American Society of Civil Engineers, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAmerican Society of Civil Engineers. Dept. of Professional Activities. Engineering Issues. American Society of Civil Engineers, 1971.
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