1. Darby H. C. , An Historical Geography of England before 1800 A.D. (1948), p. 151
2. Douglas D. C. , Feudal Documents from the Abbey of Bury St. Edmunds (1932), p. cxx
3. Seebohm F. , The English Village Community (1883), pp. 85ff
4. Wulfstan and the so-called laws of Edward and Guthrum;Whitelock;E.H.R.