Reference universe [electronic resource].
- [Sterling, VA] : Paratext, 2002-
- Paratext, LLC.
- A searchable database of back-of-the-book indexes to subject encyclopedias and other reference works in a wide variety of subject areas. Search the contents of nearly 4,500 reference titles.
- Beginning date
- Title Variation
- File Characteristics
- Computer data.
- Updated every two weeks
- Title from opening screen (viewed July 16, 2004).
- Mode of access: World Wide Web.