APA (7 वां संस्करण) प्रशस्ति पत्र

Gad, S. C. 1., & Spainhour, C. B. (2011). Contract research and development organizations: Their role in global product development. Springer eBooks..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Gad, Shayne C. 1948, और Charles B. Spainhour. "Contract Research and Development Organizations: Their Role in Global Product Development." Springer EBooks. 2011.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Gad, Shayne C. 1948, और Charles B. Spainhour. "Contract Research and Development Organizations: Their Role in Global Product Development." Springer EBooks., 2011.