"Title: Beef Bones Regulations". Agricultural Document Library, University of Hertfordshire. Department for Environment, Food and Rural Affairs. Archived from the original on 30 October 2020. Retrieved 13 October 2020.
"Title: Beef Bones Regulations". Agricultural Document Library, University of Hertfordshire. Department for Environment, Food and Rural Affairs. Archived from the original on 30 October 2020. Retrieved 13 October 2020.