APA (7th ed.) Citation

Library of Congress. Copyright Office. (1899). Directions for securing copyrights. GPO.

Chicago Style (17th ed.) Citation

Library of Congress. Copyright Office. Directions for Securing Copyrights. [Washington]: GPO, 1899.

MLA (9th ed.) Citation

Library of Congress. Copyright Office. Directions for Securing Copyrights. GPO, 1899.

Warning: These citations may not always be 100% accurate.