Dyfyniad APA

Hahn, R. W. (1989). A primer on environmental policy design. Harwood Academic Pub.

Dyfyniad Arddull Chicago

Hahn, Robert W. A Primer on Environmental Policy Design. Chur: Harwood Academic Pub, 1989.

Dyfyniad MLA

Hahn, Robert W. A Primer on Environmental Policy Design. Harwood Academic Pub, 1989.

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