APA (7th ed.) Citation

Library of Congress. Copyright Office. (1900). Nature of article to be copyrighted. [publisher not identified].

Chicago Style (17th ed.) Citation

Library of Congress. Copyright Office. Nature of Article to Be Copyrighted. [Washington]: [publisher not identified], 1900.

MLA (9th ed.) Citation

Library of Congress. Copyright Office. Nature of Article to Be Copyrighted. [publisher not identified], 1900.