APA (7 वां संस्करण) प्रशस्ति पत्र

Dand, R. (1970). Purchasing in the construction industry / R. Dand and David Farmer. Gower Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Dand, Richard. Purchasing in the Construction Industry / R. Dand and David Farmer. [London]: Gower Press, 1970.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Dand, Richard. Purchasing in the Construction Industry / R. Dand and David Farmer. Gower Press, 1970.