Putt, A. D., & Springer, J. F. (1989). Policy research: Concepts, methods and applications. Prentice Hall.
Chicago Style (17th ed.) CitationPutt, Allen D., and J. Fred Springer. Policy Research: Concepts, Methods and Applications. Englewood Cliffs, N.Y: Prentice Hall, 1989.
MLA引文Putt, Allen D., and J. Fred Springer. Policy Research: Concepts, Methods and Applications. Prentice Hall, 1989.
警告:這些引文格式不一定是100%准確.