APA (7th ed.) Citation

Green, J. R. (2007). History of the English People, Volume IV. Project Gutenberg.

Chicago Style (17th ed.) Citation

Green, John Richard. History of the English People, Volume IV. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Green, John Richard. History of the English People, Volume IV. Project Gutenberg, 2007.

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