Dyfyniad APA

Challen,Ray. (2000). Institutions transaction costs and environmental policy: Institutional reform for water resources. Edward Elgar.

Dyfyniad Arddull Chicago

Challen,Ray. Institutions Transaction Costs and Environmental Policy: Institutional Reform for Water Resources. U K: Edward Elgar, 2000.

Dyfyniad MLA

Challen,Ray. Institutions Transaction Costs and Environmental Policy: Institutional Reform for Water Resources. Edward Elgar, 2000.

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