William Camden (1607) with an English translation by
Philemon Holland - the Berkshire section.
http://www.philological.bham.ac.uk/cambrit/barkseng.html
Anglo-Saxon Chronicle
Text translated by Rev. James Ingram, 1823
http://historymedren.about.com/library/text/bltxtaschronicle.htm
"Medieval Oxford" - A
History of the County of Oxford: Volume IV. 1979
http://www.british-history.ac.uk/report.asp?compid=22803
"Oxford" by Andrew Lang (1922)
http://www2.cddc.vt.edu/gutenberg/etext00/oxfrd10.txt
Henry II - J. R. Green (1888)
http://library.beau.org/gutenberg/1/0/4/9/10494/10494-8.txt
Burghal Hidage
An overview from a personal page by Anthony Bradshaw
http://www.ogdoad.force9.co.uk/alfred/alfhidage.htm
Magna Carta
Translations of the text of the Magna Carta
http://www.historicaldocuments.com/MagnaCarta.htm
http://www.bl.uk/collections/treasures/magnatranslation.html
Seals Associated with Wallingford
(From the Berkshire Visitation, 17th Century)
Town
http://www.uk-genealogy.org.uk/england/Berkshire/visitation/vip064.html
Molyns, of Clapcott by
Wallingford
http://www.uk-genealogy.org.uk/england/Berkshire/visitation/vip112.html
Payne of Wallingford
http://www.uk-genealogy.org.uk/england/Berkshire/visitation/vip117.html
http://www.uk-genealogy.org.uk/england/Berkshire/visitation/vip118.html
Freeman of Wallingford
http://www.uk-genealogy.org.uk/england/Berkshire/visitation/vip209.html
"The Historic Thames"
by Hilaire Belloc (1907)
http://www.fullbooks.com/The-Historic-Thames.html
William of Newburgh: Book One (c. 1200)
Covers the flight of Matilda from Oxford
http://www.fordham.edu/halsall/basis/williamofnewburgh-one.html#10