Kirkman, John (3 November 2021). "Anchor Bottom". Natural England: Designated Sites. Archived from the original on 10 November 2021. Retrieved 9 November 2021.
Hiscoke, Nigel (1 May 2014). "Truleigh Hill: Unit detail". Natural England: Designated Sites. Retrieved 9 November 2021.
web.archive.org
Kirkman, John (3 November 2021). "Anchor Bottom". Natural England: Designated Sites. Archived from the original on 10 November 2021. Retrieved 9 November 2021.