الگو:Ordnance Survey
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Ordnance Survey. Get-a-map (Map). 1:25,000. Leisure. Ordinance Survey. Retrieved 21 August 2013.[پیوند مرده]
Ordnance Survey. Get-a-map (Map). 1:25,000. Leisure. Ordinance Survey. Retrieved 21 August 2013.[پیوند مرده]