United States. Library of Congress, Subject Cataloging Division. (1986). LC classification outline (5th ed.). Library of Congress.
Chicago Style (17th ed.) CitationUnited States. Library of Congress, Subject Cataloging Division. LC Classification Outline. 5th ed. Washington, D. C: Library of Congress, 1986.
MLA (9th ed.) CitationUnited States. Library of Congress, Subject Cataloging Division. LC Classification Outline. 5th ed. Library of Congress, 1986.
Warning: These citations may not always be 100% accurate.