APA (7th ed.) Citation

Library of Congress. Union Catalog Division. (1969). Symbols of American libraries: Tenth edition of symbols used in the National Union Catalog of the Library of Congress. Union Catalog Division, Processing Department (10th ed.). Library of Congress.

Chicago Style (17th ed.) Citation

Library of Congress. Union Catalog Division. Symbols of American Libraries: Tenth Edition of Symbols Used in the National Union Catalog of the Library of Congress. Union Catalog Division, Processing Department. 10th ed. Washington, D.C.: Library of Congress, 1969.

MLA (8th ed.) Citation

Library of Congress. Union Catalog Division. Symbols of American Libraries: Tenth Edition of Symbols Used in the National Union Catalog of the Library of Congress. Union Catalog Division, Processing Department. 10th ed. Library of Congress, 1969.

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