Dyfyniad APA

Milbrath,Lester W, & Inscho,Frederick. The politics of environmental policy. Sage Publications.

Dyfyniad Arddull Chicago

Milbrath,Lester W, and Inscho,Frederick. The Politics of Environmental Policy. London: Sage Publications.

Dyfyniad MLA

Milbrath,Lester W, and Inscho,Frederick. The Politics of Environmental Policy. Sage Publications.

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