Vig, N. J., & Kraft, M. E. Environmental policy: New directions for the twenty-first century (Tenth edition.).
Stile di citazione ChicagoVig, Norman J., e Michael E. Kraft. Environmental Policy: New Directions for the Twenty-first Century. Tenth edition.
Citazione MLAVig, Norman J., e Michael E. Kraft. Environmental Policy: New Directions for the Twenty-first Century. Tenth edition.
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