SciELO - Scientific Electronic Library Online

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ARMSTRONG, Sue. "Climate Change: Ask the Experts" ("Cambio climático: preguntarles a los expertos"). NewScientist.com. 2001. Disponível em: <http://www.newscientist.com/hottopics/climate/climate.jsp?id=23154500>. Acesso em: 8 maio 2010.

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