HILDEBRAND, HANS O.H., Svenska Folket under Hednatiden. Stockholm, 1886.
Historians of the Church of York and its Archbishops, ed. James Raine. 3 vols. London, 1879-1894. Rolls Series, No. 71.
HODGKIN, THOMAS, The History of England from the Earliest Times to the Norman Conquest. London, 1906. (Hunt-Poole, Political History of England, i.)
HUNT, WILLIAM, The English Church, A.D. 597-1066. London, 1899. (Stephens-Hunt, A History of the English Church, i.)
HUNTINGDON, HENRY OF, Historia Anglorum, ed. Thomas Arnold. London, 1879. Rolls Series, No. 74.
Jómsvíkingasaga ok Knytlinga, ed. C.C. Rafn. Copenhagen, 1828.
Jumièges, William of, Historiæ Nomannorum Libri viii, ed. André Duchesne. Paris, 1619. (Hist. Norm. Scriptores.)
KEMBLE, J.M., Codex Diplomaticus Ævi Saxonici. 6 vols. London, 1839-1848. (Eng. Hist. Soc.)
Knytlingasaga. See Jómsvíkingasaga.
KÖBKE, P., Om Runerne i Norden. Copenhagen, 1890. A brief popular account of the runes; valuable for its translation of important inscriptions.