APA (7th ed.) Citation

Library of Congress. Subject Cataloging Division, Gale Research Company, & Library of Congress. Classification Division. (1963). Classification. Class P, subclasses PB-PH: Modern European languages (with supplementary pages). [Library of Congress, Subject Cataloging Division].

Chicago Style (17th ed.) Citation

Library of Congress. Subject Cataloging Division, Gale Research Company, and Library of Congress. Classification Division. Classification. Class P, Subclasses PB-PH: Modern European Languages (with Supplementary Pages). Washington: [Library of Congress, Subject Cataloging Division], 1963.

MLA (9th ed.) Citation

Library of Congress. Subject Cataloging Division, et al. Classification. Class P, Subclasses PB-PH: Modern European Languages (with Supplementary Pages). [Library of Congress, Subject Cataloging Division], 1963.