H.W. Wilson's Bibliographic Index Database cites bibliographies of 50 or more citations, which are published separately or appear as parts of books, pamphlets, or periodicals. H.W. Wilson's Indexing and Abstracting Services department annually examines approximately 2,800 periodicals and 50,000 books for bibliographic material to include in the Bibliographic Index. This database annually indexes some 10,000 bibliographies appearing as whole books or parts of books and some 5,000 bibliographies appearing in periodicals.
Coverage includes bibliographies published anywhere in the world in the Roman alphabet.
Indexing of books, pamphlets, and more than 2,800 periodicals as far back as 1984. Published three times per year plus an annual cumulation.