Edwards, L. (1996). Civil Engineering Insurance And Bonding Leslie Edwards, Geoffrey Lord, Peter Madge. Thomas Telford.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEdwards, Leslie. Civil Engineering Insurance And Bonding Leslie Edwards, Geoffrey Lord, Peter Madge. Thomas Telford, 1996.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEdwards, Leslie. Civil Engineering Insurance And Bonding Leslie Edwards, Geoffrey Lord, Peter Madge. Thomas Telford, 1996.
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