Library of Congress. (1980). Library of Congress subject headings (9th ed.). Library of Congress.
Chicago Style (17th ed.) CitationLibrary of Congress. Library of Congress Subject Headings. 9th ed. Washington: Library of Congress, 1980.
MLA (9th ed.) CitationLibrary of Congress. Library of Congress Subject Headings. 9th ed. Library of Congress, 1980.
Warning: These citations may not always be 100% accurate.
