http://www.ecotourism.org/webmodules/webarticlesnet/templates/eco_template.aspx?a=12&z=25

http://www.american.edu/TED/costa-rica-tourism.htm

http://en.wikipedia.org/wiki/Costa_Rica

http://es.wikipedia.org/wiki/Ecoturismo

http://www.worldlinkcruisesonlineagency.net/CostaRica22.jpg

http://www.mycrestate.com/images/costaricamap3.jpg

http://www.blackjungle.com/gallery/Costa%20Rica%202004/images/00963_RJ_edited.jpg

http://www.blackjungle.com/gallery/Costa%20Rica%202004/index.html

http://www.pacuare.com/images/stories/WebsiteTEX/web.animals.floth%20toed.JPG

http://www.boa-constrictors.com/Bilder/CostaRicaWild.jpg

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http://www.costa-rica-real-estate.org/ima/perroquet.jpg

http://www.dreamlandscr.com/images/mapa-hot.jpg

http://www.sacredsites.com/americas/costa_rica/images/volcan-irazu-500.jpg

http://imagecache2.allposters.com/images/pic/PTGPOD/386515~Eyelash-Viper-Snake-Costa-Rica-Posters.jpg

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