To view or download for free The Pedigrees of the Families in the County of Sussex by William Berry at Google Books click the link.
This book can now also be viewed at theweald.org This is the best place to view individual pages. There is a clickable name and page index. The site also has The Pedigrees of the Families of Kent which include many families who have links to Sussex.
The Weald of Kent, Surrey and Sussex This site has a large amount of books to view, click on documents in the top right hand corner.
The Internet Archive
The Visitations of the County of Sussex 1530 & 1633-4
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