APA (7th ed.) Citation

Library of Congress. Copyright Office. (1938). Catalog of copyright entries, new series, part 2, periodicals, volume 33, no. 1. [s.n.].

Chicago Style (17th ed.) Citation

Library of Congress. Copyright Office. Catalog of Copyright Entries, New Series, Part 2, Periodicals, Volume 33, No. 1. [Washington]: [s.n.], 1938.

MLA (9th ed.) Citation

Library of Congress. Copyright Office. Catalog of Copyright Entries, New Series, Part 2, Periodicals, Volume 33, No. 1. [s.n.], 1938.