loc.gov
Library of Congress Online Catalog
Search the Library of Congress collections: books, serials, maps, music, and recorded sound. The national library of the United States.
Open sourceCrawled 2026-08-12
Dewey Decimal
97%
- 000 Computer science, information & general works
- 020 Library & information sciences
NAICS
95%
- 51 Information
- 519 Web Search Portals, Libraries, Archives
Nearby in the index
- Wikipedia, the free encyclopedia
DDC 030 · NAICS 519
- Prints & Photographs Online Catalog — Library of Congress
DDC 770 · NAICS 519
- Digital Collections — Library of Congress
DDC 973 · NAICS 519
- National Archives and Records Administration
DDC 973 · NAICS 519