Both old and new versions cover 1971- present No difference. Content is identical for years covered. Both old and new versions cover 1967 - present No difference. Content is identical for years covered. Both old and new versions cover 1966 - present.
Content is identical for years covered.
1976 - No difference. Content is identical for years covered. It will now be necessary to search these databases separately. Education Abstracts Essay and General Literature Index will only be available in print once WILS is removed. Content is identical for years covered.