APA (7th ed.) Citation

United States. Library of Congress. (1994). Library of Congress classification. H. Social sciences. Library of Congress.

Chicago Style (17th ed.) Citation

United States. Library of Congress. Library of Congress Classification. H. Social Sciences. Washington, D.C: Library of Congress, 1994.

MLA (9th ed.) Citation

United States. Library of Congress. Library of Congress Classification. H. Social Sciences. Library of Congress, 1994.

Warning: These citations may not always be 100% accurate.