"Chained Library". www.herefordcathedral.org. Retrieved 28 October 2022.
Hereford Cathedral. "The Chained Library". 2009. Received from "The chained library". herefordcathedral.org. Archived from the original on 14 February 2013. Retrieved 1 April 2013.
"Chained books". stjohns-glastonbury.org. Archived from the original on 15 August 2017. Retrieved 29 September 2019.
web.archive.org
Hereford Cathedral. "The Chained Library". 2009. Received from "The chained library". herefordcathedral.org. Archived from the original on 14 February 2013. Retrieved 1 April 2013.
"Chained books". stjohns-glastonbury.org. Archived from the original on 15 August 2017. Retrieved 29 September 2019.