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<iframe width=“800” height=“450” src=“http://www.youtube.com/embed/5pfNgs2AHco?rel=0” frameborder=“0” allowfullscreen></iframe> Data per geografiskt områdeQuizKom igang med ArcGISLitteratur|{UP}/banners/banner_litteratur.png|http://gisela.humangeo.su.se/Lästips.ashx