1. Allen , R. C. 1991 . Land, Labour and Livestock Edited by: Campbell and Overton . 236 – 54 . ‘The Two English Agricultural Revolutions, 1450–1850’, in (eds.)
2. Aston , M. 1989 . Landscape and Towrtscape in the South West Edited by: Higham . 19 – 40 . ‘The development of mediaeval rural settlement in Somerset’, in