APA (7th ed.) Citation

Project Gutenberg & Unknown. (2004). Happy and Gay Marching Away. Project Gutenberg Literary Archive Foundation.

Chicago Style (17th ed.) Citation

Project Gutenberg and Unknown. Happy and Gay Marching Away. Salt Lake City: Project Gutenberg Literary Archive Foundation, 2004.

MLA (9th ed.) Citation

Project Gutenberg and Unknown. Happy and Gay Marching Away. Project Gutenberg Literary Archive Foundation, 2004.

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