Dunn, W. N. (1981). Public policy analysis: An introduction. New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoDunn, William N. Public Policy Analysis: An Introduction. New Jersey: Prentice-Hall, 1981.
Deismireacht MLADunn, William N. Public Policy Analysis: An Introduction. New Jersey: Prentice-Hall, 1981.
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