APA (7th ed.) Citation

Library of Congress. (1943). Catalog of copyright entries, new series, part 1, group 2, Books, volume 40, index, 1943. [s.n.].

Chicago Style (17th ed.) Citation

Library of Congress. Catalog of Copyright Entries, New Series, Part 1, Group 2, Books, Volume 40, Index, 1943. [Washington]: [s.n.], 1943.

MLA (9th ed.) Citation

Library of Congress. Catalog of Copyright Entries, New Series, Part 1, Group 2, Books, Volume 40, Index, 1943. [s.n.], 1943.