Popocatépetl: Verskil tussen weergawes
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== Eksterne skakels ==
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* {{en}} {{cite web|url=https://www.britannica.com/place/Popocatepetl|title=Popocatépetl|publisher=[[Encyclopædia Britannica]]|accessdate=9 Junie 2017}}
* {{en}} [http://www.volcano.si.edu/volcano.cfm?vnum=1401-09= Popocatépetl] in die ''Global Volcanism Program'' van die Smithsonian Institution
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