Não informado. (2009). International Review for Environmental Strategies. Institute for Global Environmental Strategies.
Chicago-referens (17:e uppl.)Não informado. International Review for Environmental Strategies. Kanagawa, Japão: Institute for Global Environmental Strategies, 2009.
MLA-referens (8:e uppl.)Não informado. International Review for Environmental Strategies. Institute for Global Environmental Strategies, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.