Early English Books Online (EEBO) [via Proquest]

Indexes citations and provides linked page images of works represented in the microfilm series Early English Books I and II, based on The Short-Title Catalogue (Pollard and Redgrave, 1475-1640); the Short-Title Catalog II (Wing, 1641-1700), The Thomson Tracts (1640-1661), and The Early English Books Tracts Supplements.