Dyfyniad APA

Weimer, D. L., & Vining, A. R. (2011). Policy analysis: Concepts and practice (Fifth edition.). Longman ; Pearson.

Dyfyniad Arddull Chicago

Weimer, David Leo, and Aidan R. Vining. Policy Analysis: Concepts and Practice. Fifth edition. Boston: Longman ; Pearson, 2011.

Dyfyniad MLA

Weimer, David Leo, and Aidan R. Vining. Policy Analysis: Concepts and Practice. Fifth edition. Longman ; Pearson, 2011.

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