Dyfyniad APA

Vedung, E. (1997). Public policy and program evaluation. Transaction Publishers.

Dyfyniad Arddull Chicago

Vedung, Evert. Public Policy and Program Evaluation. New Bruswick, N.J: Transaction Publishers, 1997.

Dyfyniad MLA

Vedung, Evert. Public Policy and Program Evaluation. Transaction Publishers, 1997.

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