"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.
|08:58:30, 4 May 2017 +|
|Subcategory of||Types of geology +|
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|Category:Additional articles for Hydrogeology + , Category:Africa Groundwater Atlas + , Category:Hydrogeology of Wales + , Category:Reports on Hydrogeology +||Subcategory of|