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Paul R. Portney的作品

Cover for Paul R. Portney · Public Policies for Environmental Protection (Paperback Book) (2000)

Public Policies for Environmenta... (2000)

Paul R. Portney

Cover for Paul R. Portney · Discounting and Intergenerational Equity (Hardcover Book) (1999)

Discounting and Intergenerationa... (1999)

Paul R. Portney