General Purpose Databases cover lots of different disciplines. Results can include popular sources, such as newspapers and magazines, as well as scholarly journal articles, books, and more.
These databases cover just one or two closely related subjects. While the coverage is more limited than general purpose databases, they cover those areas more deeply. They include results for academic books, conference papers, and dissertations in addition to scholarly journals.
Authoritative, multidisciplinary content covering more than 15,000 journals is available through this search of Science Citation Index Expanded, Social Science Citation Index, and Arts & Humanities Citation Index. Covers 1900 - Present.