APA (7th ed.) Citation

U. S. Library of Congress. Subject Cataloging Division. (1948). Classification. Subclass PG, in part: Russian literature. U. S. Government Printing Office.

Chicago Style (17th ed.) Citation

U. S. Library of Congress. Subject Cataloging Division. Classification. Subclass PG, in Part: Russian Literature. Washington: U. S. Government Printing Office, 1948.

MLA (9th ed.) Citation

U. S. Library of Congress. Subject Cataloging Division. Classification. Subclass PG, in Part: Russian Literature. U. S. Government Printing Office, 1948.