"Hascot Hill Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived from the original(PDF) on 4 May 2015. Retrieved 30 July 2017.
web.archive.org
"Hascot Hill Pit citation"(PDF). Sites of Special Scientific Interest. Natural England. Archived from the original(PDF) on 4 May 2015. Retrieved 30 July 2017.