APA (7th ed.) Citation

Library of Congress. Copyright Office. (2004). Copyright Renewals 1957. Project Gutenberg.

Chicago Style (17th ed.) Citation

Library of Congress. Copyright Office. Copyright Renewals 1957. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Library of Congress. Copyright Office. Copyright Renewals 1957. Project Gutenberg, 2004.

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