Piggott & Piggott 1939, p. 148; Calkin 1960, p. 114; Gale 2003, p. 175. Piggott, Stuart; Piggott, C. M. (1939). "Stone and Earth Circles in Dorset". Antiquity. 13 (50): 138–158. doi:10.1017/S0003598X00027861. Calkin, J. B. (1960). "Some Archaeological Discoveries in the Isle of Purbeck, Part 2". Proceedings of the Dorset Natural History and Archaeological Society. 81: 114–123. Gale, John (2003). Prehistoric Dorset. Stroud: Tempus. ISBN978-0-7524-2906-9.
Piggott & Piggott 1939, p. 148; Calkin 1960, p. 114; Gale 2003, pp. 175, 176. Piggott, Stuart; Piggott, C. M. (1939). "Stone and Earth Circles in Dorset". Antiquity. 13 (50): 138–158. doi:10.1017/S0003598X00027861. Calkin, J. B. (1960). "Some Archaeological Discoveries in the Isle of Purbeck, Part 2". Proceedings of the Dorset Natural History and Archaeological Society. 81: 114–123. Gale, John (2003). Prehistoric Dorset. Stroud: Tempus. ISBN978-0-7524-2906-9.
Piggott & Piggott 1939, p. 148; Calkin 1960, p. 114. Piggott, Stuart; Piggott, C. M. (1939). "Stone and Earth Circles in Dorset". Antiquity. 13 (50): 138–158. doi:10.1017/S0003598X00027861. Calkin, J. B. (1960). "Some Archaeological Discoveries in the Isle of Purbeck, Part 2". Proceedings of the Dorset Natural History and Archaeological Society. 81: 114–123.