APA (7 वां संस्करण) प्रशस्ति पत्र
Wright, D. (2016). Using commercial contracts: A practical guide for engineers and project managers. Wiley Blackwell.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Wright, David. Using Commercial Contracts: A Practical Guide for Engineers and Project Managers. Chichester, [England]: Wiley Blackwell, 2016.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Wright, David. Using Commercial Contracts: A Practical Guide for Engineers and Project Managers. Wiley Blackwell, 2016.
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