Hughes, B. P. (1980). Limit state theory for reinforced concrete design: SI Units (3rd ed.). Pitman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHughes, Barry Peter. Limit State Theory for Reinforced Concrete Design: SI Units. 3rd ed. London: Pitman, 1980.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHughes, Barry Peter. Limit State Theory for Reinforced Concrete Design: SI Units. 3rd ed. Pitman, 1980.
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