kNo edit summary Etiket: 2017-bronwysiging |
Etiket: 2017-bronwysiging |
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Lyn 48:
== Eksterne skakels ==
;Ensiklopediese inligting
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* {{en}} [https://www.nationalgeographic.org/encyclopedia/glacier/ ''National Geographic: Glacier'']
;Gletsers en seevlakwisseling
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