CONSTRUCTION, I. B. (1997). Code Of Practice For The Selection Of Main Contractors Construction Industry Board. Thomas Telford.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCONSTRUCTION, Industry Board. Code Of Practice For The Selection Of Main Contractors Construction Industry Board. Thomas Telford, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCONSTRUCTION, Industry Board. Code Of Practice For The Selection Of Main Contractors Construction Industry Board. Thomas Telford, 1997.
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