Não informado. (2009). International Review for Environmental Strategies. Institute for Global Environmental Strategies.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. International Review for Environmental Strategies. Kanagawa, Japão: Institute for Global Environmental Strategies, 2009.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. International Review for Environmental Strategies. Institute for Global Environmental Strategies, 2009.
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