APA (7th ed.) Citation

Gilbert, J. (2008). The Book of Brave Old Ballads. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gilbert, John. The Book of Brave Old Ballads. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Gilbert, John. The Book of Brave Old Ballads. Project Gutenberg, 2008.

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