Tohutoro APA (7th ed.)

Portney, P. R., & Stavins, R. N. Public policies for environmental protection (Second edition.).

Tohutoru Kātū Chicago

Portney, Paul R., me R. N. Stavins. Public Policies for Environmental Protection. Second edition.

Tohutoro MLA

Portney, Paul R., me R. N. Stavins. Public Policies for Environmental Protection. Second edition.

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