Gray 1906, p. 43; Burl 2005, p. 80. Gray, Harold St George (1906). "The Stone Circle on Withypool Hill, Exmoor". Proceedings of the Somerset Archaeological and Natural History Society. 52: 42–50. Burl, Aubrey (2005). A Guide to the Stone Circles of Britain, Ireland and Brittany. New Haven and London: Yale University Press. ISBN978-0-300-11406-5.
Gray 1906, p. 46; Burl 2005, p. 80. Gray, Harold St George (1906). "The Stone Circle on Withypool Hill, Exmoor". Proceedings of the Somerset Archaeological and Natural History Society. 52: 42–50. Burl, Aubrey (2005). A Guide to the Stone Circles of Britain, Ireland and Brittany. New Haven and London: Yale University Press. ISBN978-0-300-11406-5.
Gray 1906, p. 46; Grinsell 1970, p. 39; Burl 2005, p. 80. Gray, Harold St George (1906). "The Stone Circle on Withypool Hill, Exmoor". Proceedings of the Somerset Archaeological and Natural History Society. 52: 42–50. Grinsell, Leslie V. (1970). The Archaeology of Exmoor: Bideford Bay to Bridgwater. Newton Abbot: David and Charles. ISBN978-0-7153-4953-3. Burl, Aubrey (2005). A Guide to the Stone Circles of Britain, Ireland and Brittany. New Haven and London: Yale University Press. ISBN978-0-300-11406-5.
Gray 1906, p. 42; Burl 2005, p. 80. Gray, Harold St George (1906). "The Stone Circle on Withypool Hill, Exmoor". Proceedings of the Somerset Archaeological and Natural History Society. 52: 42–50. Burl, Aubrey (2005). A Guide to the Stone Circles of Britain, Ireland and Brittany. New Haven and London: Yale University Press. ISBN978-0-300-11406-5.