Gloucestershire, Friends of the Forest - Forest of Dean -. "Friends of the Forest". Archived from the original on 3 March 2012. Retrieved 16 December 2016.
Sharp 1980, pp. 140–142. Sharp, Buchanan (1980), In contempt of all authority, Berkeley, CA: University of California Press, ISBN0-520-03681-6, OL4742314M, 0520036816
Sharp 1980, p. 163. Sharp, Buchanan (1980), In contempt of all authority, Berkeley, CA: University of California Press, ISBN0-520-03681-6, OL4742314M, 0520036816
Sharp 1980, p. 164. Sharp, Buchanan (1980), In contempt of all authority, Berkeley, CA: University of California Press, ISBN0-520-03681-6, OL4742314M, 0520036816
Gloucestershire, Friends of the Forest - Forest of Dean -. "Friends of the Forest". Archived from the original on 3 March 2012. Retrieved 16 December 2016.