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| Bibliographie:
Livres: World Book Millenium 2000, Volume 14. Chicago: World Boodk Inc, 2000. Catherine Headlam, The Kingfisher Science Encyclopedia. New York: Kingfisher Books, 1991.Mariette Campergue, Sciences de la Vie ettde la Terre, Geologie, 4e. Paris: Nathan, 1998. Sites Internets: www.brittanica.com www.encarta.com |
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| Page d'introduction |
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Littérature | ||||||||||||||||