APA (7 वां संस्करण) प्रशस्ति पत्र

Springer, J. F., Haas, P. J., & Porowski, A. (2017). Applied policy research: Concepts and cases (Second edition.). Routledge.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Springer, J. Frederick, Peter J. Haas, और Allan Porowski. Applied Policy Research: Concepts and Cases. Second edition. New York: Routledge, 2017.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Springer, J. Frederick, et al. Applied Policy Research: Concepts and Cases. Second edition. Routledge, 2017.