19 junho 2006

 

Referências

http://www.auniao.pb.gov.br
http://www.esquel.org.br
http://www.igeo.uerj.br/VICBG-2004/Eixo2/e2_cd02.htm
http://www.bio2000.hpg.ig.com.br/desertificacao.htm

# posted by Kylven Guedes @ 08:53
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